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Old January 15th 19, 03:19 PM posted to
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Default December 2018 (Weston Coyney)

Climate Data and Brief Summary for December 2018 /H1
Last updated 15th January 2019/P
*Anomalies are based on averages for the period 1981-2010
Anomaly* Date
Mean 5.8 +2.3
Mean Maximum 7.9 +2.1
Mean Minimum 3.7 +2.5
High Maximum 11.9 6th
Low Minimum -1.1 14th
Low Maximum 2.5 14th
High Minimum 8.7 2nd
Low Grass -2.4 14th
Air Frosts 2 -8
Ground Frosts 11 -6
Hours of Frost 15.0

Barometric pressure, 24 hour observations (mbar)
Mean 1015.4 +2.2
Maximum 1035.1 30th
Minimum 994.3 2nd

Total 91.3 +12.1
Rain days (0.2mm or more) 22 +3
Wet days (1.0mm or more) 19 +5
Maximum Fall 9.0 15th
Rainfall duration (hrs.) 56.0

Sun Hours 53.1 +7.9
Maximum day 6.6 14th
Nil Sun Days 14

Mean 93.9
Dry days (60% or less) 0

WIND (mph)
24hour mean 5.1
09.00 mean 5.7
Maximum gust 39.0 18th
%North 2
%North East 0
%East 5
%South East 24
%South 11
%South West 18
%West 27
%North West 10
%Calm 3
Hours of calm 19.0

Days with:/p
Sleet/Snow 0 -5
Snow lying (09.00) 0 -4
Maximum depth (cm) 0.0
Total snow depth (cm) 0.0
Hail 0
Thunder 0
Fog (09.00) 7

Brief summary of the month:
December 2018 was the warmest since 2015 with temperatures well above
average. It was also the wettest since 2015 with 115% of the average
rainfall. Sunshine totals were just above normal making it the sunniest
since 2014 with 117% of the average. There was no December snowfall for
the third time in the last four years. Five of the last eight have seen
no snow lying. The mean December temperature for this decade stands at
5.1c (1.6c above average).

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