Wednesday, 14 August 2019

July 2019 Summary

In Brief:
Mostly dry, fine and warm, sometimes very warm.  Some rain during the third week and during the final few days.

Temperature: [Minimum]:
(Due to a transmitter fault night-time minimum temperatures are unknown after the 19th).
Lowest: 10.9 degs C on the 4th.
Highest: 16.3 degs C on the 12th.  Every July after 2011 has had a warmer night than this.   It is likely there was a warmer night in July 2019 after the 19th.
Average minimum:  13.25 degs C.  
Nights with temperature below 5 degs C = 0.
Nights with temperature below 0 degs C = 0.

Temperature: [Maximum]:
(Due to a transmitter fault daytime maximum temperatures from the 19th to the 30th were estimated.  Estimates have not been included in calculations).
Lowest: 19.3 degs C on the 1st.  This is likely to be close to the actual lowest daytime maximum temperature along with the 19th and 30th.
Highest: 26.2 degs C on the 5th.  This is likely to be the actual highest temperature of the month.
Average maximum: 22.75 degs C.  This is likely to be close to the actual average maximum for the month.
Days with temperature above 20 degs C = 18/19.   Estimate 27/31.
Days with temperature above 25 degs C = 1/19.   Estimate 1/31.

Rainfall:
Total this month:  57.3 mm.  5th driest July of the last 12.  2nd driest month of 2019 behind May.
Last month [June 2019]:  107.9 mm.
Last year [July 2018]:  45.8 mm.

Wettest day:  22.9 mm on the 19th.  4th wettest day of 2019 and 39.97% of month's total.
Other days with 5 mm or more:  29th and 30th (13.9 mm each).
Wettest spells:  29th to 30th: 27.8 mm.   18th to 19th: 26.9 mm.

Driest spells:  1st to 16th (from 24th June): 0.2 mm.   20th to 28th:  0.6 mm.
Completely dry days:  20.  =2nd most for July since before 2008 and most of any month since July 2018.
Days with no measurable rain:  22.  =2nd most for July since before 2008.

Cumulatively: 2019 = 557.1 mm.
2018:  716.4 mm.  [-22.24 %].   Driest January to July period since 2011.

Thunder:
None this month. 

Pressure:
Lowest: 996.4 mb on the 30th.  
Highest: 1029.9 mb on the 3rd.

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