Monday 1 September 2008 - Seasonal Climate Summary for Perth - Product Code:IDCKGC21L0
Below average rainfall in winter for Perth
Rainfall - below average: This winter Perth received
349.2 mm over 40days, compared with the average of 482 mm over about 49
days. Last winter, Perth recorded 370.2 mm on 50 days. Rainfall totals
for individual months this winter were: June 142.0 mm (average 177 mm),
July 179.4 mm (average 170 mm) and August 27.8 mm (average 135 mm). The
wettest day this winter was 1 June when 42.8 mm of rain was recorded.
August rainfall was the fourth lowest on record.
Mean daily maximum temperature - near average: The mean
daily maximum temperature for Perth this winter was 19.1°C compared
with the average of 18.7°C. Last winter (2007), the mean daily maximum
temperature was 19.5°C. Daily values this winter ranged from a cold
14.1°C on 31 July to a warm 24.2°C on 17 August.
Mean daily minimum temperature - below average: The mean daily minimum temperature for Perth this winter was 6.9°C, making it the lowest mean daily minimum temperature for winter since the 6.6°C in 2001. The average for winter is 8.3°C. All winter months in 2008 recorded mean minima below the average. Last winter (2007), the mean minimum temperatue was 9.1°C. Daily minima this winter ranged from a very cold 0.7°C on 6 and 7 July to a mild 15.1°C on 1 June.
* Denotes the highest daily mean maximum temperature for
winter in the following years; 1976, 1983 and 2006.
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.