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New Zealand Eleven Station series audit

New Zealand raw temperature fraction audit


Within the Eleven Station series of records maintained by the National Institute of Water and Atmospheric Research (NIWA) in New Zealand, 16.2% of all raw temperatures were logged as a whole .0 Fahrenheit integer before Celsius metrication on 1 July 1971.

This compares with 25.5% in New Zealand's Seven Station series, 30% in Australia's ACORN-SAT dataset and 31.04% in Australia's HQ dataset series of all temperatures recorded as .0 Fahrenheit before Celsius metrication in September 1972. The correct proportion should be around 10%.

Combined, New Zealand's Eleven and Seven Station series totalled 22% of Fahrenheit temperatures recorded before July 1971 as .0F.


Eleven Station series

The Eleven Station series estimates New Zealand's average annual temperature has increased by 1C since 1930, based on unadjusted raw data from 11 weather stations that have had no significant site changes since the 1930s.

The 22 stations that are analysed in the Eleven Station series are:


Raoul Island stations - Raoul Island 6169, Raoul Island AWS 6170

Tauranga Aero stations - Tauranga Aero 1612, Tauranga Aero AWS 1615

Hamilton, Ruakura stations - Hamilton, Ruakura 2101, Hamilton, Ruakura EWS 12616, Hamilton, Ruakura 2 EWS 26117

Gisborne Aero/AWS stations - Gisborne Aero 2807, Gisborne AWS 2810

Mt Ruapehu, Chateau stations - Mt Ruapehu, Chateau 1 2363, Mt Ruapehu, Chateau 2 2357, Mt Ruapehu, Chateau EWS 18464

Palmerston N stations - Palmerston N 3238, Palmerston North EWS 21963

Westport Aero stations - Westport Aero 3810, Westport Aero AWS 7342

Molesworth stations - Molesworth 4461, Molesworth AWS 7427

Queenstown stations - Queenstown 5446

Invercargill Aero Aero stations - Invercargill Aero 5814

Campbell Island stations - Campbell Island 6172, Campbell Island AWS 6174


Data from these different stations in 11 locations are merged by the NIWA to create an average raw temperature trend.

In total, the audited Eleven Station dataset includes 202,232 minimum and maximum Fahrenheit temperatures recorded at 22 weather stations before July 1971 and 327,750 minimum and maximum Celsius temperatures recorded at all stations from 1 July 1971 to 31 December 2011, totalling 529,982 recordings.


Fahrenheit .0 rounding before 1971

In the Fahrenheit era before July 1971, 16.2% of all temperatures recorded at the 22 New Zealand stations were logged as .0F degrees.

The combined 28.1% of temperatures recorded as .9F and .1F infers an actual .0F ratio around 30%.

elevent station temperature fractions


A breakdown of this data shows that 15.5% of all Fahrenheit maxima recorded before July 1971 were rounded to .0F and 16.9% of all minima were rounded to .0F. As in Australia and in New Zealand's Seven Station series, there is a greater proportion of minima recorded as .0F than maxima.


new zealand maximum temperature roundings


new zealand minimim temperature fractions


The proportions of total converted Celsius fractions recorded at all 22 weather stations before 1 July 1971 were:


new zealand seven station temperature fractions


Celsius .0 rounding after 1971

In the Celsius era from 1 July 1971 to 31 December 2011, 13.2% of all temperatures recorded at all 22 New Zealand locations within the Eleven Station dataset were recorded as .0C degrees.


new zealand celsius fractions


A breakdown of this data shows that 13.6% of all Celsius maxima recorded since July 1971 were rounded to .0F and 12.7% of all minima were rounded to .0F. Unlike Fahrenheit fractional distribution, this shows a slight tendency for more maxima than minima to be rounded to .0.


new zealand maximum temperature fractions


new zealand minimum temperature fractions


Six of the 22 stations have blocks of consecutive .0C and .5C recordings, all since 1 July 1971, which contribute a small amount of the high .0C proportion in the Celsius era. These consecutive blocks of rounded .0C and .5C are thought to be software problems but are not as common in New Zealand's Celsius era records as they are in Australia.


Below are the minimum and maximum percentages of whole .0 Fahrenheit recordings at each of the 22 stations before 1 July 1971:

Click station names for full audit results


Station Minima .0F % Maxima .0F %
Raoul Island 6169 14.1% 14.2%
Raoul Island AWS 6170 Opened after 1971 Opened after 1971
Tauranga Aero 1612 13.8% 15.2%
Hamilton, Ruakura 2101 13% 10.2%
Hamilton, Ruakura EWS 12616 Opened after 1971 Opened after 1971
Hamilton, Ruakura 2 EWS 26117 Opened after 1971 Opened after 1971
Gisborne Aero 2807 14% 14.5%
Gisborne AWS 2810 Opened after 1971 Opened after 1971
Mt Ruapehu, Chateau 1 2363 21.7% 22.9
Mt Ruapehu, Chateau 2 2357 Opened after 1971 Opened after 1971
Mt Ruapehu, Chateau EWS 18464 Opened after 1971 Opened after 1971
Palmerston N 3238 21.1% 18.1%
Palmerston North EWS 21963 Opened after 1971 Opened after 1971
Westport Aero 3810 32.7% 32.3%
Westport Aero AWS 7342 Opened after 1971 Opened after 1971
Molesworth 4461 35.5% 30.4%
Molesworth AWS 7427 Opened after 1971 Opened after 1971
Queenstown 5446 14.3% 10%
Invercargill Aero 5814 14.5% 13.4%
Campbell Island 6172 14.9% 16.3%
Campbell Island AWS 6174 Opened after 1971 Opened after 1971



The full results for this audit of Eleven Station series locations in New Zealand are within:

Note: This audit of New Zealand weather station temperature records was possible due to the Excel programming skills of former ABS statistician Ian Hill.


Eleven Station and Seven Station series combined

When the 22 locations in the Eleven Station series are combined with the 25 locations in the Seven Station series, the 47 locations together had 22% of Fahrenheit temperatures recorded as .0F before July 1971 - see chart. Combined, all 47 stations together had 14.3% of Celsius temperatures recorded as .0C since July 1971 - see chart.

A breakdown of this data shows that 21.7% of all Fahrenheit maxima recorded before July 1971 were rounded to .0F and 22.4% of all minima were rounded to .0F.

Since July 1971, 14.6% of all Celsius maxima were rounded to .0F and 14.1% of all minima were rounded to .0F.

The 47 stations combined had 549,493 recordings of Fahrenheit temperatures before July 1971 and 616,764 recordings of Celsius temperatures after July 1971, totalling 1,166,257 recordings.



Below are audit results for each of the 22 Eleven Station locations


Raoul Island 6169 maximum temperature audit
9 March 1940 to 1 November 2011


At Raoul Island 6169 from 9 March 1940 to June 30 1971, whole .0 Fahrenheit degrees represented 14.2% of all maximum temperatures recorded.


1940-1971 represented 43.7% of the time span and had 20.2% of .0C and 27.8% of .5C maximum temperatures within the entire temperature record.


From 1971-2011, maximum temperature recordings of .0 Celsius degrees represented 21.6% of the total and .5C recordings represented 10.7% of the total of all fractions since 1971. Together, .0C and .5C represented 32.3% of all maximum temperatures recorded since metrication.


Raoul Island 6169 minimum temperature audit
9 March 1940 to 1 November 2011


Raoul Island 6169 from 9 March 1940 to June 30 1971, whole .0 Fahrenheit degrees represented 14.1% of all minimum temperatures recorded.


1940-1971 represented 43.7% of the time span and had 29% of .0C and 24.9% of .5C minimum temperatures within the entire temperature record.


From 1971-2011, minimum temperature recordings of .0 Celsius degrees represented 13.1% of the total and .5C recordings represented 12.3% of the total of all fractions since 1971. Together, .0C and .5C represented 25.4% of all minimum temperatures recorded since metrication.



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Raoul Island AWS 6170 maximum temperature audit
20 November 1991 to 31 December 2011


At Raoul Island AWS 6170 from 1991-2011, maximum temperature recordings of .0 Celsius degrees represented 11.8% of the total and .5C recordings represented 9.7% of the total of all fractions since 1991. Together, .0C and .5C represented 21.4% of all maximum temperatures recorded.


Raoul Island AWS 6170 minimum temperature audit
20 November 1991 to 31 December 2011


At Raoul Island AWS 6170 from 1991-2011, minimum temperature recordings of .0 Celsius degrees represented 10.4% of the total and .5C recordings represented 10.6% of the total of all fractions since 1991. Together, .0C and .5C represented 20.9% of all minimum temperatures recorded since 1991.



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Tauranga Aero 1612 maximum temperature audit
2 February 1941 to 1 March 1989


At Tauranga Aero 1612 from 2 February 1941 to June 30 1971, whole .0 Fahrenheit degrees represented 15.2% of all maximum temperatures recorded.


1941-1971 represented 62.5% of the time span and had 39.6% of .0C and 68.5% of .5C maximum temperatures within the entire temperature record.


From 1971-1989, maximum temperature recordings of .0 Celsius degrees represented 18.8% of the total and .5C recordings represented 3.5% of the total of all fractions since 1971. Together, .0C and .5C represented 22.2% of all maximum temperatures recorded since metrication.


Tauranga Aero 1612 minimum temperature audit
1 February 1941 to 1 March 1989


At Tauranga Aero 1612 from 1 February 1941 to June 30 1971, whole .0 Fahrenheit degrees represented 13.8% of all minimum temperatures recorded.


1941-1971 represented 62.5% of the time span and had 45.1% of .0C and 66.3% of .5C minimum temperatures within the entire temperature record.


From 1971-1989, minimum temperature recordings of .0 Celsius degrees represented 13.6% of the total and .5C recordings represented 4.2% of the total of all fractions since 1971. Together, .0C and .5C represented 17.8% of all minimum temperatures recorded since metrication.



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Tauranga Aero AWS 1615 maximum temperature audit
2 June 1999 to 31 December 2011


At Tauranga Aero AWS 1615 from 1999-2011, maximum temperature recordings of .0 Celsius degrees represented 10.4% of the total and .5C recordings represented 10.6% of the total of all fractions since 2002. Together, .0C and .5C represented 20.9% of all maximum temperatures recorded.


Tauranga Aero AWS 1615 minimum temperature audit
2 June 1999 to 31 December 2011


At Tauranga Aero AWS 1615 from 1999-2011, minimum temperature recordings of .0 Celsius degrees represented 10.2% of the total and .5C recordings represented 9.2% of the total of all fractions since 2002. Together, .0C and .5C represented 19.4% of all minimum temperatures recorded since metrication.



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Hamilton, Ruakura 2101 maximum temperature audit
2 January 1940 to 7 March 1997


At Hamilton, Ruakura 2101 from 2 January 1940 to 30 June 1971, whole .0 Fahrenheit degrees represented 10.2% of all maximum temperatures recorded.


1940-1971 represented 54.4% of the time span and had 38.6% of .0C and 40.6% of .5C maximum temperatures within the entire temperature record.


From 1971-1997, maximum temperature recordings of .0 Celsius degrees represented 11.4% of the total and .5C recordings represented 9.3% of the total of all fractions. Together, .0C and .5C represented 20.6% of all maximum temperatures recorded since metrication.


Hamilton, Ruakura 2101 minimum temperature audit
2 January 1940 to 7 March 1997


At Hamilton, Ruakura 2101 from 2 January 1940 to 30 June 1971, whole .0 Fahrenheit degrees represented 13% of all minimum temperatures recorded.


1940-1971 represented 54.4% of the time span and had 36.8% of .0C and 36.5% of .5C minimum temperatures within the entire temperature record.


From 1971-1997, minimum temperature recordings of .0 Celsius degrees represented 12.7% of the total and .5C recordings represented 10.9% of the total of all fractions. Together, .0C and .5C represented 23.6% of all minimum temperatures recorded since metrication.



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Hamilton, Ruakura EWS 12616 maximum temperature audit
26 October 1996 to 22 June 2007


At Hamilton, Ruakura EWS 12616 from 1996-2007, maximum temperature recordings of .0 Celsius degrees represented 9.9% of the total and .5C recordings represented 9.8% of the total of all fractions since from 1996 to 2007. Together, .0C and .5C represented 19.7% of all maximum temperatures recorded.


Hamilton, Ruakura EWS 12616 minimum temperature audit
26 October 1996 to 22 June 2007


At Hamilton, Ruakura EWS 12616 from 1996-2007, minimum temperature recordings of .0 Celsius degrees represented 10.0% of the total and .5C recordings represented 9.4% of the total of all fractions from 1996 to 2007. Together, .0C and .5C represented 19.4% of all minimum temperatures recorded.



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Hamilton, Ruakura 2 EWS 26117 maximum temperature audit
11 November 2005 to 30 December 2011


At Hamilton, Ruakura 2 EWS 26117 from 2005-2011, maximum temperature recordings of .0 Celsius degrees represented 10.9% of the total and .5C recordings represented 8.7% of the total of all fractions from 2005 to 2011. Together, .0C and .5C represented 19.6% of all maximum temperatures recorded.


Hamilton, Ruakura 2 EWS 26117 minimum temperature audit
11 November 2005 to 30 December 2011


At Hamilton, Ruakura 2 EWS 26117 from 2005-2011, minimum temperature recordings of .0 Celsius degrees represented 10.0% of the total and .5C recordings represented 8.8% of the total of all fractions from 2005 to 2011. Together, .0C and .5C represented 18.8% of all minimum temperatures recorded.



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Gisborne Aero 2807 maximum temperature audit
2 February 1940 to 1 March 1993


At Gisborne Aero 2807 from 2 February 1940 to June 30 1971, whole .0 Fahrenheit degrees represented 14.5% of all maximum temperatures recorded.


1940-1971 represented 58.5% of the time span and had 46.2% of .0C and 37.1% of .5C maximum temperatures within the entire temperature record.


From 1971-1993, maximum temperature recordings of .0 Celsius degrees represented 11.9% of the total and .5C recordings represented 10.3% of the total of all fractions from 1971 to 1993. Together, .0C and .5C represented 22.2% of all maximum temperatures recorded since metrication.


Gisborne Aero 2807 minimum temperature audit
2 February 1940 to 1 March 1993


At Gisborne Aero 2807 from 2 February 1940 to June 30 1971, whole .0 Fahrenheit degrees represented 14.0% of all minimum temperatures recorded.


1940-1971 represented 58.5% of the time span and had 43.4% of .0C and 39.9% of .5C minimum temperatures within the entire temperature record.


From 1971-1993, minimum temperature recordings of .0 Celsius degrees represented 12.9% of the total and .5C recordings represented 9.8% of the total of all fractions from 1971 to 1993. Together, .0C and .5C represented 22.7% of all minimum temperatures recorded since metrication.



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Gisborne AWS 2810 maximum temperature audit
14 December 1989 to 31 December 2011


At Gisborne AWS 2810 from 1989-2011, maximum temperature recordings of .0 Celsius degrees represented 10.4% of the total and .5C recordings represented 9.9% of the total of all fractions since 1989. Together, .0C and .5C represented 20.4% of all maximum temperatures recorded.


Gisborne AWA 2810 minimum temperature audit
14 December 1989 to 31 December 2011


At Gisborne AWS 2810 from 1989-2011, minimum temperature recordings of .0 Celsius degrees represented 10.5% of the total and .5C recordings represented 10.0% of the total of all fractions since 1989. Together, .0C and .5C represented 20.5% of all minimum temperatures recorded since metrication.



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Mt Ruapehu, Chateau 1 2363 maximum temperature audit
2 January 1956 to 1 March 1983


At Mt Ruapehu, Chateau 1 2363 from 1956 to June 30 1971, maximum temperature recordings of .0 Fahrenheit degrees represented 22.9% of all temperatures recorded.

Note: the publicly accessible temperature records from NIWA are missing most months and years from 1956 to 1971. This proportion of Fahrenheit .0 recordings is based only on 389 days of recording. Starting from 2 November 1971, the post-metrication record is consistent from 3 January 1972.


From 1971-1983, maximum temperature recordings of .0 Celsius degrees represented 32.1% of the total and .5C recordings represented 20.7% of the total of all fractions. Together, .0C and .5C represented 52.8% of all maximum temperatures recorded.


Mt Ruapehu, Chateau 1 2363 minimum temperature audit
2 January 1956 to 1 March 1983


At Mt Ruapehu, Chateau 1 2363 from 1956 to June 30 1971, minimum temperature recordings of .0 Fahrenheit degrees represented 21.7% of all temperatures recorded.

Note: the publicly accessible temperature records from NIWA are missing most months and years from 1956 to 1971. This proportion of Fahrenheit .0 recordings is based only on 396 days of recording. Starting from 2 November 1971, the post-metrication record is consistent from 3 January 1972.


From 1971-1983, minimum temperature recordings of .0 Celsius degrees represented 33.4% of the total and .5C recordings represented 21.3% of the total of all fractions. Together, .0C and .5C represented 54.7% of all minimum temperatures recorded.



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Mt Ruapehu, Chateau 2 2357 maximum temperature audit
2 March 1981 to 8 November 2000


At Mt Ruapehu, Chateau 2 2357 from 1981-2000, maximum temperature recordings of .0 Celsius degrees represented 14.8% of the total and .5C recordings represented 11.7% of the total of all fractions. Together, .0C and .5C represented 26.4% of all maximum temperatures recorded.


Mt Ruapehu, Chateau 2 2357 minimum temperature audit
2 March 1981 to 8 November 2000


At Mt Ruapehu, Chateau 2 2357 from 1981-2000, minimum temperature recordings of .0 Celsius degrees represented 16.7% of the total and .5C recordings represented 14.1% of the total of all fractions. Together, .0C and .5C represented 30.8% of all minimum temperatures recorded since metrication.



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Mt Ruapehu, Chateau EWS 18464 maximum temperature audit
13 September 2000 to 31 December 2011


At Mt Ruapehu, Chateau EWS 18464 from 2000-2011, maximum temperature recordings of .0 Celsius degrees represented 10.2% of the total and .5C recordings represented 9.4% of the total of all fractions. Together, .0C and .5C represented 19.6% of all maximum temperatures recorded.


Mt Ruapehu, Chateau EWS 18464 minimum temperature audit
13 September 2000 to 31 December 2011


At Mt Ruapehu, Chateau EWS 18464 from 2000-2011, minimum temperature recordings of .0 Celsius degrees represented 10.1% of the total and .5C recordings represented 10.1% of the total of all fractions. Together, .0C and .5C represented 20.2% of all minimum temperatures recorded since metrication.



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Palmerston N 3238 maximum temperature audit
2 January 1940 to 1 June 2001


At Palmerston N 3238 from 2 January 1940 to 30 June 1971, whole .0 Fahrenheit degrees represented 18.1% of all maximum temperatures recorded.


1940-1971 represented 50.8% of the time span and had 40.1% of .0C and 30.8% of .5C maximum temperatures within the entire temperature record.


From 1971-2001, maximum temperature recordings of .0 Celsius degrees represented 10.9% of the total and .5C recordings represented 9.7% of the total of all fractions. Together, .0C and .5C represented 20.6% of all maximum temperatures recorded since metrication.


Palmerston N 3238 minimum temperature audit
2 January 1940 to 1 June 2001


At Palmerston N 3238 from from 2 January 1940 to 30 June 1971, whole .0 Fahrenheit degrees represented 21.1% of all minimum temperatures recorded.


1940-1971 represented 50.8% of the time span and had 36.6% of .0C and 22.1% of .5C minimum temperatures within the entire temperature record.


From 1971-2001, minimum temperature recordings of .0 Celsius degrees represented 13.5% of the total and .5C recordings represented 12.7% of the total of all fractions. Together, .0C and .5C represented 26.2% of all minimum temperatures recorded since metrication.



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Palmerston North EWS 21963 maximum temperature audit
31 March 2001 to 31 December 2011


At Palmerston North EWS 21963 from 2001-2011, maximum temperature recordings of .0 Celsius degrees represented 10.5% of the total and .5C recordings represented 10.4% of the total of all fractions. Together, .0C and .5C represented 20.8% of all maximum temperatures recorded.


Palmerston North EWS 21963 minimum temperature audit
31 March 2001 to 31 December 2011


At Palmerston North EWS 21963 from 2001-2011, minimum temperature recordings of .0 Celsius degrees represented 10.1% of the total and .5C recordings represented 9.4% of the total of all fractions. Together, .0C and .5C represented 19.4% of all minimum temperatures recorded.



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Westport Aero 3810 maximum temperature audit
2 January 1966 to 31 October 1991


At Westport Aero 3810 from 1966 to 30 June 1971, maximum temperature recordings of .0 Fahrenheit degrees represented 32.7% of all temperatures recorded.


1966-1971 represented 20% of the time span and had 11.1% of .0C and 7.5% of .5C maximum temperatures within the entire temperature record.


From 1971-1991, maximum temperature recordings of .0 Celsius degrees represented 15.4% of the total and .5C recordings represented 13.2% of the total of all fractions. Together, .0C and .5C represented 28.6% of all maximum temperatures recorded.


Westport Aero 3810 minimum temperature audit
1 January 1966 to 31 October 1991


At Westport Aero 3810 from 1966 to 30 June 1971, minimum temperature recordings of .0 Fahrenheit degrees represented 32.3% of all temperatures recorded.


1966-1971 represented 20% of the time span and had 15.4% of .0C and 7.2% of .5C minimum temperatures within the entire temperature record.


From 1971-1991, minimum temperature recordings of .0 Celsius degrees represented 12.5% of the total and .5C recordings represented 13.1% of the total of all fractions. Together, .0C and .5C represented 25.6% of all minimum temperatures recorded.



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Westport Aero AWS 7342 maximum temperature audit
14 October 1991 to 31 December 2011


At Westport Aero AWS 7342 from 1991-2011, maximum temperature recordings of .0 Celsius degrees represented 12.0% of the total and .5C recordings represented 9.8% of the total of all fractions. Together, .0C and .5C represented 21.7% of all maximum temperatures recorded.


Westport Aero AWS 7342 minimum temperature audit
14 October 1991 to 31 December 2011


At Westport Aero AWS 7342 from 1991-2011, minimum temperature recordings of .0 Celsius degrees represented 12.6% of the total and .5C recordings represented 9.4% of the total of all fractions. Together, .0C and .5C represented 22.0% of all minimum temperatures recorded from 1991 to 2011.



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Molesworth 4461 maximum temperature audit
2 January 1950 to 31 January 1993


At Molesworth 4461 from 2 January 1950 to 30 June 1971, maximum temperature recordings of .0 Fahrenheit degrees represented 30.4% of all temperatures recorded.


1950-1971 represented 48.8% of the time span and had 48.8% of .0C and 30.2% of .5C maximum temperatures within the entire temperature record.


From 1971-1993, maximum temperature recordings of .0 Celsius degrees represented 9.9% of the total and .5C recordings represented 7.8% of the total of all fractions. Together, .0C and .5C represented 17.6% of all maximum temperatures recorded.


Molesworth 4461 minimum temperature audit
1 January 1950 to 31 January 1993


At Molesworth 4461 from 1 January 1950 to 30 June 1971, minimum temperature recordings of .0 Fahrenheit degrees represented 35.5% of all temperatures recorded.


1950-1971 represented 48.8% of the time span and had 46.6% of .0C and 19.5% of .5C minimum temperatures within the entire temperature record.


From 1971-1993, minimum temperature recordings of .0 Celsius degrees represented 11.0% of the total and .5C recordings represented 11.7% of the total of all fractions. Together, .0C and .5C represented 22.7% of all minimum temperatures recorded.



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Molesworth AWS 7427 maximum temperature audit
2 May 1992 to 24 August 1994


At Molesworth AWS 7427 from 1992-1994, maximum temperature recordings of .0 Celsius degrees represented 10.5% of the total and .5C recordings represented 10.0% of the total of all fractions. Together, .0C and .5C represented 20.4% of all maximum temperatures recorded.


Molesworth AWS 7427 minimum temperature audit
2 May 1992 to 24 August 1994


At Molesworth AWS 7427 from 1992-1994, minimum temperature recordings of .0 Celsius degrees represented 9.5% of the total and .5C recordings represented 9.9% of the total of all fractions. Together, .0C and .5C represented 19.4% of all minimum temperatures recorded from 1992 to 1994.



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Queenstown 5446 maximum temperature audit
2 January 1930 to 31 December 2011


At Queenstown 5446 from 2 January 1930 to 30 June 1971, maximum temperature recordings of .0 Fahrenheit degrees represented 10.0% of all temperatures recorded.


1930-1971 represented 50.6% of the time span and had 37.0% of .0C and 19.8% of .5C maximum temperatures within the entire temperature record.


From 1971-2011, maximum temperature recordings of .0 Celsius degrees represented 14.1% of the total and .5C recordings represented 10.0% of the total of all fractions. Together, .0C and .5C represented 24.1% of all maximum temperatures recorded.


Queenstown 5446 minimum temperature audit
1 January 1930 to 31 December 2011


At Queenstown 5446 from 1 January 1930 to 30 June 1971, minimum temperature recordings of .0 Fahrenheit degrees represented 14.3% of all temperatures recorded.


1930-1971 represented 50.6% of the time span and had 42.8% of .0C and 19.3% of .5C minimum temperatures within the entire temperature record.


From 1971-2011, minimum temperature recordings of .0 Celsius degrees represented 11.5% of the total and .5C recordings represented 10.4% of the total of all fractions. Together, .0C and .5C represented 21.9% of all minimum temperatures recorded.



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Invercargill Aero 5814 maximum temperature audit
2 June 1948 to 31 December 2011


At Invercargill Aero 5814 from 2 June 1948 to 30 June 1971, maximum temperature recordings of .0 Fahrenheit degrees represented 13.4% of all temperatures recorded.


1948-1971 represented 36.5% of the time span and had 24.5% of .0C and 20.5% of .5C maximum temperatures within the entire temperature record.


From 1971-2011, maximum temperature recordings of .0 Celsius degrees represented 11.4% of the total and .5C recordings represented 10.6% of the total of all fractions. Together, .0C and .5C represented 22.0% of all maximum temperatures recorded.


Invercargill Aero 5814 minimum temperature audit
1 June 1948 to 31 December 2011


At Invercargill Aero 5814 from 1 June 1948 to 30 June 1971, minimum temperature recordings of .0 Fahrenheit degrees represented 14.5% of all temperatures recorded.


1948-1971 represented 36.5% of the time span and had 22.5% of .0C and 17.3% of .5C minimum temperatures within the entire temperature record.


From 1971-2011, minimum temperature recordings of .0 Celsius degrees represented 13.3% of the total and .5C recordings represented 12.7% of the total of all fractions. Together, .0C and .5C represented 26.0% of all minimum temperatures recorded.



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Campbell Island 6172 maximum temperature audit
4 July 1941 to 1 September 1995


At Campbell Island 6172 from 4 July 1941 to 30 June 1971, maximum temperature recordings of .0 Fahrenheit degrees represented 16.3% of all temperatures recorded.


1941-1971 represented 55.6% of the time span and had 33.3% of .0C and 36.4% of .5C maximum temperatures within the entire temperature record.


From 1971-1995, maximum temperature recordings of .0 Celsius degrees represented 17.4% of the total and .5C recordings represented 10.1% of the total of all fractions. Together, .0C and .5C represented 27.5% of all maximum temperatures recorded.


Campbell Island 6172 minimum temperature audit
4 July 1941 to 1 September 1995


At Campbell Island 6172 from 4 July 1941 to 30 June 1971, minimum temperature recordings of .0 Fahrenheit degrees represented 14.9% of all temperatures recorded.


1941-1971 represented 55.6% of the time span and had 38.2% of .0C and 30.5% of .5C minimum temperatures within the entire temperature record.


From 1971-1995, minimum temperature recordings of .0 Celsius degrees represented 14.4% of the total and .5C recordings represented 13.8% of the total of all fractions. Together, .0C and .5C represented 28.2% of all minimum temperatures recorded.



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Campbell Island AWS 6174 maximum temperature audit
20 November 1991 to 31 December 2011


At Campbell Island AWS 6174 from 1991-2011, maximum temperature recordings of .0 Celsius degrees represented 11.1% of the total and .5C recordings represented 9.9% of the total of all fractions. Together, .0C and .5C represented 20.9% of all maximum temperatures recorded.


Campbell Island AWS 6174 minimum temperature audit
20 November 1991 to 31 December 2011


At Campbell Island AWS 6174 from 1991-2011, minimum temperature recordings of .0 Celsius degrees represented 11.1% of the total and .5C recordings represented 9.5% of the total of all fractions. Together, .0C and .5C represented 20.5% of all minimum temperatures recorded from 1991 to 2011.




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