ACORN-SAT weather station audit

Perth Airport 9021 raw temperature audit

Station opened 3 June 1944 audit to 31 December 2011

(See also Perth Regional Office 9034)

(See also Perth Airport Comparison 9250)

Perth Airport 9021 maximum temperature audit

At Perth Airport 9021 from 3 June 1944 to September 1972, whole .0 Fahrenheit degrees represented 13.2% of all maximum temperatures recorded and .5 Fahrenheit degrees represented 7% of all maximum temperatures recorded.

1944-1972 represented 42.6% of the time span and had 30.5% of .0C and 24.1% of .5C maximum temperatures within the entire temperature record.

From 1972-2011, maximum temperature recordings of .0 Celsius degrees represented 10.7% of the total and .5C recordings represented 10.3% of the total of all fractions since 1972. Together, .0C and .5C represented 21% of all maximum temperatures recorded since metrication.

Perth Airport 9021 BoM maxima raw data feed

Perth Airport BoM High Quality adjusted anomalies above

Perth Airport unadjusted raw temperatures below

Perth Airport 9021 minimum temperature audit

At Perth Airport 9021 from 3 June 1944 to September 1972, whole .0 Fahrenheit degrees represented 16.1% of all minimum temperatures recorded and .5 Fahrenheit degrees represented 7.6% of all minimum temperatures recorded.

1944-1972 represented 42.6% of the time span and had 28.6% of .0C and 23.7% of .5C minimum temperatures within the entire temperature record.

From 1972-2011, minimum temperature recordings of .0 Celsius degrees represented 11.7% of the total and .5C recordings represented 10% of the total of all fractions since 1972. Together, .0C and .5C represented 21.7% of all minimum temperatures recorded since metrication.

Perth Airport 9021 BoM minima raw data feed

Perth Airport BoM High Quality adjusted anomalies above

Perth Airport unadjusted raw temperatures below

Perth Regional Office 9034 raw temperature audit

Station audited 1 January 1910 to 31 December 1962

Perth Regional Office 9034 maximum temperature audit

At Perth Regional Office 9034 from 1 January 1910 to 31 December 1962, whole .0 Fahrenheit degrees represented 13.9% of all maximum temperatures recorded and .5 Fahrenheit degrees represented 7.5% of all maximum temperatures recorded.

Perth Regional Office 9034 BoM maxima raw data feed

Perth Regional Office 9034 minimum temperature audit

At Perth Regional Office 9034 from 1 January 1910 to 31 December 1962, whole .0 Fahrenheit degrees represented 18.6% of all minimum temperatures recorded and .5 Fahrenheit degrees represented 6.7% of all minimum temperatures recorded.

Perth Regional Office 9034 BoM minima raw data feed

Perth Airport Comparison 9250 raw temperature audit

Station opened 15 November 1997 audit to 7 January 2001

Perth Airport Comparison 9250 maximum temperature audit

At Perth Airport Comparison 9250 from 15 November 1997 to 7 January 2001, maximum temperature recordings of .0 Celsius degrees represented 25% of the total and .5C recordings represented 0% of the total of all fractions from 1997 to 2001. Together, .0C and .5C represented 25% of all maximum temperatures recorded from 1997 to 2001.

Perth Airport Comparison 9250 maxima raw data feed

Perth Airport Comparison 9250 minimum temperature audit

At Perth Airport Comparison 9250 from 11 December 1998 to 30 July 2001, minimum temperature recordings of .0 Celsius degrees represented 25% of the total and .5C recordings represented 0% of the total of all fractions from 1997 to 2001. Together, .0C and .5C represented 25% of all minimum temperatures recorded from 1997 to 2001.

Perth Airport Comparison 9250 minima raw data feed

Extracts from Simon Torok thesis The development of a high quality historical temperature data base for Australia (1996, vol 2) which first established Australia's High Quality temperature record:

Perth Airport 9021 station equipment history

Air Temperature
20/JUN/1994 INSTALL Temperature Probe - Dry Bulb (Type Rosemount S/N - 0265) Surface Observations
01/MAY/1944 INSTALL Thermograph (Type Fielden S/N - Unknown) Surface Observations
20/JUN/1994 REMOVE Thermograph (Type Fielden S/N - Unknown) Surface Observations
01/JUN/1944 INSTALL Thermometer, Mercury, Dry Bulb (Type Dobbie S/N - 14561) Surface Observations

Maximum Temperature
01/JUN/1944 INSTALL Thermometer, Mercury, Max (Type Dobbie S/N - 15391) Surface Observations
04/OCT/2002 REPLACE Thermometer, Mercury, Max (Now Dobbie S/N - 17198) Surface Observations
25/JUN/2009 REPLACE Thermometer, Mercury, Max (Now WIKA S/N - 22072) Surface Observations
Minimum Temperature
01/JUN/1944 INSTALL Thermometer, Alcohol, Min (Type Dobbie S/N - 17031) Surface Observations
20/JUN/2009 REPLACE Thermometer, Alcohol, Min (Now Dobbie S/N - 29052) Surface Observations

Perth Regional Office 9034 station equipment history

Air Temperature
01/JAN/1876 INSTALL Thermograph (Type Fielden S/N - Unknown) Surface Observations
17/JUL/1985 REMOVE Thermograph (Type Fielden S/N - Unknown) Surface Observations
01/JAN/1947 INSTALL Thermometer, Mercury, Dry Bulb (Type Unknown S/N - Unknown) Surface Observations
30/APR/1992 REMOVE Thermometer, Mercury, Dry Bulb (Type Unknown S/N - Unknown) Surface Observations

Maximum Temperature
01/JAN/1947 INSTALL Thermometer, Mercury, Max (Type Unknown S/N - Unknown) Surface Observations
30/APR/1992 REMOVE Thermometer, Mercury, Max (Type Unknown S/N - Unknown) Surface Observations
Minimum Temperature
01/JAN/1947 INSTALL Thermometer, Alcohol, Min (Type Unknown S/N - Unknown) Surface Observations
30/APR/1992 REMOVE Thermometer, Alcohol, Min (Type Unknown S/N - Unknown) Surface Observations

Perth Airport Comparison 9250 station equipment history

Air Temperature
27/OCT/1997 INSTALL Humidity Probe (Type Rotronics S/N - 5182-006) Surface Observations
09/JAN/2001 REMOVE Humidity Probe (Type Rotronics S/N - 5182-006) Surface Observations
27/OCT/1997 INSTALL Temperature Probe - Dry Bulb (Type Rosemount S/N - Unknown) Surface Observations
09/JAN/2001 REMOVE Temperature Probe - Dry Bulb (Type Rosemount S/N - Unknown) Surface Observations

Maximum Temperature (No Electronic History)
Minimum Temperature (No Electronic History)

This website produced by Scribeworks 2009/12