October 2015 Summary

In Brief:
Mostly fine and dry for the first three weeks, then unsettled.  Temperatures slightly below average.

Temperature [Minimum]:
The coldest night of the month was that ending the 25th with 4.6 degs C.  This was the coldest October night since 2012.  The night ending the 6th was the mildest night of October 2015 with 13.7 degs C.  There has been a milder October night every year since 2005.  The average minimum temperature for October 2015 was 9.92 degs C, which is the 5th lowest of the last thirteen.
The temperature fell below 5 degs C on just the one night.  The last October night below 5 degs C was in 2012.

Temperature [Maximum]:
Temperatures ranged from 13.5 degs C on the 24th, to 19.4 degs C on the 3rd.  This is the lowest October maximum since 2010.  The average October 2015 daytime maximum was 15.64 degs C, this being the lowest since 2008 and the 4th lowest of the last thirteen.
The temperature did not exceed 20 degs C during October 2015, compared with 5 times in October 2014 and 8 times in October 2013. The mainly fine, sunny weather during the first half of October 2015 did not, therefore, lead to any particularly warm or hot weather.

Rainfall:
63.2 mm of rain fell during October 2015, which means it was the driest month since June and the driest October since at least 2007.  This compares with 68.6 mm in September, and 132.8 mm in October 2014.
The wettest day of October 2015 was the 30th with 13.5 mm, and there were only 2 other days with more than 7 mm: 6th [8.5] and 27th [12.2 mm].
There were 18 completely dry days and 20 with no measurable rain, both the most since June, and the most in October since at least 2007.
The dry spell that began on September 25th continued until October 3rd, and there was no measurable rain between October 7th and 20th.

Cumulatively 921.2 mm of rain has fallen from January to October 2015.  This compares with 1003.3 mm [-8.18%] during the same period in 2014.

Thunder:
None this month.