July 2009 getting short of rain

The daily weather logWeather log July 2009

Apart from a scarcity of rain, and an abundance of cloud, the weather in July was very much as usual. One day reached 23°, another only 12°. There were 18 frosts (normally 17), but no night was colder than -2° (normally 4 nights are). Fog filled the valley on the 28th.
There had been twenty-three days without 5 mm of rain when 9 mm fell on the 16th. In six rain days the month’s total was 21.3 mm. This is well below the median for July (35 mm): it is in the 25th percentile.

 Comparing July months

Climate July 2009

All mean daily temperatures for the month were normal.
There is a serious shortage of rain in the five months to date: the total of 138 mm is on the 10th percentile. Five-month totals below the 10th percentile are rare in recent years: July 2008 (9th percentile), August 2006 (9th), May 2005 (5th) and September 2003 (7th).
(Very much drier 5-month conditions prevailed in 2002: November had a severe rainfall shortage (in the 2nd percentile) while July, August, September and October had extreme rainfall shortages, in the first percentile. September 2002 had the lowest 5-month total (61 mm) in 75 years.)

Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Dew point values before August 2005 are from Tamworth Airport 6 am data supplied by the Bureau of Meteorology. Temperature and other data are from 3 Monash Street, Manilla.


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