Tuesday, 26 November 2019

October 2019 Summary

In Brief:
Extremely wet.  Very few dry days.  Slightly on the cool side.

Temperature: [Minimum]:
Lowest: 4.6 degs C on the 27th.  
Highest: 15.6 degs C on the 1st.  
Average minimum:  10.51 degs C.   7th coolest of the last 16 Octobers.
Nights with temperature below 5 degs C = 1.
Nights with temperature below 0 degs C = 0.

Temperature: [Maximum]:
Lowest: 11.7 degs C on the 28th. 
Highest: 18.8 degs C on the 5th.  Warmest October day since 2015. 
Average maximum: 15.64 degs C.  =5th coolest of the last 16 Octobers.
Days with temperature above 20 degs C = 0.   
Days with temperature above 25 degs C = 0.  

Rainfall:
Total this month*: 231.4 mm.  Wettest October since at least 2007 (previously 2013).  Wettest month since January 2016.   More than 3 times the total for October 2018.
Last month [September 2019**]:  145.1 mm.
Last year [October 2018]:  72.1 mm.
*Includes 30/9/19 - estimated max on this day = 10.0 mm.  **Until 29th.

Wettest day:  27.4 mm on the 7th.  (Total of 40.8 mm fell from 10th to 13th).
Other days with 15 mm or more:  26th (26.5 mm), 29th (24.5 mm), 30th (18.5 mm), 25th (17.9 mm).
Wettest spells:  25th to 31st: 99.4 mm and 7th to 13th: 76.3 mm.

Driest spell:  19th to 24th:  1.8 mm.
Completely dry days:  5*.  Fewest since December 2018 and fewest for October since before 2007.
Days with no measurable rain:  8*.  Fewest since March 2018.
*Estimate for up to 4th and from 10th to 13th = one per period.

Cumulatively to October: 2019 = 1053.3 mm.
Same period in 2018:  920.7 mm.  [+14.4 %].   
First time 2019 cumulative total higher than that of 2018.  
Wettest January to October period since before 2009.  
32.88% of the total rain for 2019 so far, fell in six weeks from September 21st.

Thunder:
None knowingly this month. 

Pressure (at 2200 only):
Lowest: 1000.0 mb on the 18th.  
Highest: 1026.9 mb on the 21st.

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