Sunday, 24 December 2017

November 2017 Summary

In Brief:
Mostly unsettled.  Near average temperatures, except cold final week.  Mostly dry third week.

Temperature: [Minimum]:
Lowest:  0.7 degs C on the 29th.
Highest:  13.5 degs C on the 22nd.
Average minimum:  6.79 degs C.  3rd coldest of the last 15 Novembers.  Coldest = 2010.
Nights with temperature below 5 degs C = 9.  3rd most since at least 2003.  Most = 2010.
Nights with temperature below 0 degs C = 0.

Temperature: [Maximum]:
Lowest:  8.2 degs C on the 30th. 
Highest:  15.5 degs C on the 20th.  Every November between 2003 and 2015 had a milder day than this.
Average maximum:  12.52 degs C.  3rd coldest of the last 15 Novembers.  Coldest = 2016.
Days with temperature above 20 degs C = 0.
Days with temperature above 25 degs C = 0. 

Rainfall:
Total: 62.7 mm.  Driest month since April 2017.  Driest November since at least 2007.
October 2017:  82.0 mm.
November 2016:  137.9 mm.

Wettest day:  11.0 mm on the 27th.  Has been a wetter November day every year since 2008.
Other days with >5 mm: 9.0 mm [11th]; 7.9 [12th]; 6.9 [7th].
Wettest spells: 7th to 12th: 27.7 mm; and 25th to 30th: 26.9 mm.  
Driest spells:  No measurable rain 14th to 21st.
Completely dry days:  7. 
Days with no measurable rain:  12.
Cumulatively:  2017:  962.6 mm.
2016:  1177.4 mm.  [-18.24%].

Thunder:
No thunder this month.

Pressure:
Lowest:  984.9 mb on the 22nd.  
Highest: 1033.4 mb on the 17th.

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