October 2007 warm, with rain

The daily weather logWeather log October 2007

October was very warm. All but four days had daily maximum temperatures above normal. Night time minima varied at first, and then settled on the warm side. As a result, the seven-day mean temperature was a couple of degrees above normal nearly all the time.

The month began in a dry spell that reached 50-days before good rain fell on the 12th. After that, there was another 12-day dry spell. The dry spells had clear skies, very low humidity, and high daily temperature ranges of around 20°.
By the end of the month, however, a lot of rain had fallen, totalling 52 mm. It fell mainly in four days, with 17 mm on the 26th. The final wet spell was uncomfortably humid.

 Comparing October monthsClimate October 2007

This October was the warmest in nine years. Daily minima were 1.2° above average, daily means were 1.7° above average, and daily maxima were 2.3° above average. The high daily maximum value of 29.4° is usually seen in November, not October.

The rainfall of 52 mm was near the long-term average of 58 mm for October. Similar amounts fell in October 2005 and 2006. October 2000 had been wet (110 mm) and October 2002 dry (15 mm).
The total rainfall for the two months ending in October 2007 was rather low compared to the same two months in other years. At 54 mm, it was on the 19th percentile: that is, there has been less than 54 mm rainfall in September-October about one year in five. By contrast, the three months ending in October had rainfall above normal, and the last nine month period had rainfall well above normal. Most other periods, up to 48 months, have been slightly drier than normal. Just 2 mm extra per month would have made these last four years wetter than normal.

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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