Thursday, 25 July 2019

June 2019 Summary

In Brief:
Wet and cold first half.   More summery second half.   Unusually windy on 27th/28th.

Temperature: [Minimum]:
Lowest: 6.7 degs C on the 6th.  Coldest June night since 2015 and 4th coldest since at least 2003.
Highest: 16.2 degs C on the 27th.
Average minimum:  11.63 degs C.  2nd  lowest of last 16 Junes.  Coldest 11.02 in 2015.
Nights with temperature below 5 degs C = 0.
Nights with temperature below 0 degs C = 0.

Temperature: [Maximum]:
Lowest: 11.1 degs C on the 7th.  Coldest June day since before 2004, exceeding the previous coldest of 13.5 in 2017 by 2.4 degs.
The 10th and 11th were also colder than that (13.2 and 12.6).
Highest: 23.9 degs C on the 26th.  24.2 was the max in April.  Lowest June max since 2015.
Average maximum: 17.96 degs C.  Coldest of the last 16 Junes.  Previously this was 18.9 in 2016.
Days with temperature above 20 degs C = 6.   Fewest since before 2004, equal with 2016.
Days with temperature above 25 degs C = 0.

Rainfall:
Total:  107.9 mm.  2nd wettest June of the last 12.  Wettest = 2012. 
May 2019:  27.4 mm.
June 2018:  9.6 mm.

Wettest day:  46.5 mm on the 7th.  Wettest day since August 2015.  Wettest June day since before 2008. Previously 41.2 mm in 2011.
Other days with 10 mm or more:  4th (23.5 mm) and 10th (14.0 mm).
Wettest spell:  4th to 10th: 92.0 mm.

Driest spells:  24th to 30th:  Dry.  17th to 23rd:  6.3 mm.
Completely dry days:  11.  Fewest for June since 2012. 
Days with no measurable rain:  15.

Cumulatively: 2019 = 499.8 mm.
2018:  670.6 mm.  [-25.5 %].   6th driest (and wettest) January to June period since 2009, but 2nd driest January to June period since 2013.

Thunder:
None this month. 

Pressure:
Lowest: 998.1 mb on the 7th.  
Highest: 1027.8 mb on the 26th.

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