June 2009 cloudy, with warm nights

The daily weather log

Weather log June 2009

Cloudy skies kept most June nights warm. A cold snap took the minimum on the 12th down to -3.2°. As in June 2005, there were only 5 frosts, compared with 13 normally. Few days were very warm or cool, but the 11th reached only 12.1° (6° below normal). There was patchy fog in the valley on three mornings.
Ten rain days brought 36.4 mm. The wettest was the 22nd, with 13.2 mm.

 Comparing June months

Climate June 2009

This June was very cloudy: 60% of the mornings had more than 4 octas of cloud. June 2005 (53%) and June 2007 (60%) were similar. The 11-year trend shows a big rise in June cloudy mornings: from 6 in 1999 to 16 in 2009!

The mean daily maximum temperature was normal for June. However, the mean daily minimum (5.9°) was the highest for the decade, beating other Junes that had warm nights: 2005 (5.7°) and 2008 (5.4°). The month’s mean temperature was high (like last June) and the temperature range low (12.1°). The mean humidity (early morning dew point) was also high.
The rainfall total of 36 mm is on the median (50th percentile) for June. Rainfall totals for groups of months up to six months are below the median, indicating shortages. However, even the worst is not serious: the four-month rainfall March to June (117 mm) is on the 14th percentile. Rainfall totals for longer periods up to 72 months are all above the median, except for the 36-month total, which is on the 49th percentile.

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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