December 2015: normal month, normal year

Senna bush photo

Senna-leaf circles

Very few days or nights were more than four degrees from normal this month. The coldest day (the 23rd) was 24.9°, only 7.6° below normal.
Rain fell, mainly as showers, on nine days spaced through the month. The highest reading was 31 mm on the 10th.

Weather log December 2015

 Comparing December months

Nearly all climate variables were very close to normal. Those furthest from normal were:
Early morning dew point, 9.4°, below normal by 3.9°;
Daily minimum temperature, 17.1°, above normal by 0.7°;
Cloudy days percent, 45%, above normal by 14%.
The total rainfall of 101.9 mm was well above the average of 74 mm. It was almost the same as in last December (99 mm): in the 74th percentile, The two-month total for November and December was also high (176 mm). There are no serious rainfall shortages for totals for any number of months.

Climate for December 2015

The Year 2015

Compared to other years in the new century, this year had day temperatures that were on the average (25.6°), and nights (10.8°) that were just 0.6° above average. The subsoil temperature (20.1°) was also near average.
Like last year, the percentage of mornings with more than four octas of cloud (37%) was close to the recent average (40%) for 2007 to 2014, but much more cloudy than the earlier average (26%) for 2000 to 2006.
The rainfall, 621 mm, was only 31 mm below the long-term rainfall average of 652 mm.

Data. All data, including subsoil at 750 mm, are from 3 Monash Street, Manilla. Rainfall data up to 26/3/15 is from Manilla Post Office, Station 055031.

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