Monday, 1 December 2008 - Seasonal Climate Summary for Perth - Product Code: IDCKGC21L0
An average spring in Perth
Rainfall - near average: This spring the rainfall in Perth was near average. From September to November, Perth received 172.0 mm over 39 days, compared with the average of 156 mm over 31 days. It was Perth's wettest spring since 2001, then 173.4 mm on 32 days. Last spring, Perth recorded 148.2 mm on 27 rain days. Rainfall totals for individual months this spring were: September 75.8 mm (average 81 mm), October 38.4 (average 53 mm) and November 57.8 mm (average 22 mm). The wettest day during spring was 25 September when 21.0 mm of rain was recorded.
Mean daily maximum temperature - near average: The mean daily maximum temperature for Perth this spring was 22.7°C, compared with the average of 23.1°C. Daily values this spring ranged from a cool 16.5°C on 25 September to a hot 35.7°C on 20 October. Last spring the mean daily temperature was 23.8°C.
Mean daily minimum temperature - near average: The mean daily minimum temperature for Perth this spring was 11.4°C, compared with the average of 11.6°C. Daily minima ranged from a cold 1.0°C on 22 September, the lowest temperature recorded for Perth in September, to a warm 21.3°C on 20 October. Last spring the mean daily minimum temperature was 11.7°C.
Mean daily sunshine hours - below average:
Perth's mean daily sunshine hours this spring was 8.8 hours, and was
the least sunniest spring since the 8.5 hours in 1993. The average
sunshine hours for spring
* Denotes the highest daily maximum temperature recorded on 24 November 1913 and 11 November 2003.** Denotes the lowest daily minimum temperature recorded on 1 September and 10 September 2005.
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 Mt Lawley site, the most significant changes of this kind relate to temperature and rain days. For that reason, mean temperature and rain day data quoted here are based only on readings from the Mt 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.