Tuesday, 1 July 2008 - Monthly Climate Summary for Perth - Product Code:IDCKGC11L0
Near average rainfall for June for Perth
Rainfall - near average:
The city received 142.0 mm of rainfall over 14 days in June compared
with the average of 177 mm over about 16 days. The wettest
day in June 2008 was the 1st when 42.8 mm was recorded which was
Perth's wettest June day for 3 years. Historically, June rainfall has
ranged from 24.6 mm in 2006, to 476.1 mm in 1945. Last year in June
Perth recorded 60.0 mm on 11 days.
Year to date rainfall - near average: The total rainfall for January to June this year was 417.0 mm recorded on 45 days compared with the average of 381 mm on about 43 days. The total for the same period last year was 226.6 mm on 44 days.
Mean daily maximum temperature - near average: Perth's mean daily maximum temperature in June was 19.7°C, compared with the average of 19.3°C. Daily maxima ranged from a cold 14.2°C on the 26th, to a warm 23.2°C on the 3rd.
Mean daily minimum temperature - near average: Perth's mean daily minimum temperature in June was 7.8°C, which was the lowest mean daily minimum temperature recorded since the 5.8°C in 2006. The average for June is 8.7°C. Daily minima ranged from a cold 2.9°C on the 22nd to a mild 15.1°C on the 1st.
Cold nights: Perth recorded
11 cold nights this June with a minimum temperature of 5 degrees or
less the most such nights since the 13 nights in 2006. The average for
June is six nights. Last June Perth recorded four cold night.
Perth in July
highest maximum temperature for July on record on the following dates:
17 & 18 July 1976.
Warm days in July: On average, Perth can expect six days when the maximum temperature is 20°C or more. The greatest number of such days in July was 14 days in 1976 and 1977. Last July, Perth recorded 9 such days.
Cold days in July: On average, Perth can expect two days when the maximum temperature is 15°C or less. The greatest number of such days in July was 12 in 1916. Last July, Perth recorded no such days.
Cold nights in July: Perth has a mean of eight cold nights when the minimum temperature is 5°C or lower. The greatest number of such nights was 16 in 1998 and 2001. Last July, Perth recorded four such nights.
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.