Tuesday, 4 March 2008 - Seasonal Climate Summary for Perth - Product Code: IDCKGC21L0
Hottest summer for thirty years in PerthMean daily maximum temperature - above average: The mean daily maximum temperature for Perth this summer was 31.0°C, which was the highest mean daily maximum temperature for Perth in summer since 1977/78, then 32.0°C which was Perth's hottest summer on record. The average for summer is 30.1°C. Last summer the mean daily maximum temperature was 29.9°C. Daily values this summer ranged from a cool 20.1°C on 6 December 2007 to a very hot 44.2°C on 26 December 2007 (Boxing Day).
35°C and higher - above average: A
daily maximum temperature of 35°C or higher was reached on 25 occasions
this summer, whereas the average for summer is 16 such days. This was
the greatest number of days of 35°C or higher since the 31 days in the
summer of 1977/78. Between the dates 1st and 6th February
2008, Perth experienced six consecutive days with maximum
temperatures greater than 35°C. This was the longest hot spell in Perth
since the seven days between 31st December 1999 to 6th January 2000.
Mean daily minimum temperature - near
average: The mean daily minimum temperature for Perth
this summer was 17.8°C, compared to the average of 17.2°C. Daily minima
ranged from a cool 7.9°C on 7 December 2007 to a warm 24.9°C on 14
February 2008. Last summer the mean daily minimum temperature was
Rainfall - above average: This summer the rainfall in Perth was above average. From December to February, Perth received 65.6 mm over 9 days compared with the average of 35 mm on about 8 days. It was Perth's wettest summer since 1999/2000, then 146.2 mm on 13 days. Last summer, Perth recorded 27.8 mm over 11 days. Rainfall totals for individual months this summer were: December 18.0 mm (average 13 mm), January 0.0 mm (average 10 mm) and February 47.6 mm (average 12 mm). The wettest day was 8 February 2008 when 30.4 mm of rain was recorded.
* Denotes highest February minimum temperature on record has occurred on the following dates: 6 February 1898, 8 February 1933 and 3 February 1962.
Note: Official Perth observations have been recorded at several different sites with varying instrumentation over the years, and these changes can affect the continuity of the climate record. For the current Perth (Mount Lawley) site, the most significant changes of this kind relate to temperature and rain days. For that reason, current mean temperature and rain-day data quoted here are based only on readings from the Perth (Mount Lawley) site, which commenced observations in 1993. Sunshine recordings are from Perth Airport and for similar reasons current means use only Perth Airport data, which commenced in 1993.