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UK Extremes

High Temp
9.7° C
Saint Helier
Low Temp
-9.3° C
Cairngorm
Precipitation
7.2 mm
Scilly, Saint Mary'S
Sunniest


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This Stations Seasonal Degree Days Summary (18°C Base)

Data last updated 21/11/24 06:15
Northern Hemisphere Meterological Seasons
Winter: December, January, February
Spring: March, April, May
Summer: June, July, August
Autumn: September, October, November

 Daily DetailMonthly SummarySeasonal Summary 


DateHeating Degree Days
WinterSpringSummerAutumnYear
Dec 2023 / Nov 20246.3 0.6 less than the Winter average.0.0 0.3 less than the Spring average.0.0  4.5* 4.1 more than the Autumn average.10.8* 3.2 more than the yearly average.
Dec 2022 / Nov 202326.7 19.8 more than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.26.7 19.1 more than the yearly average.
Dec 2021 / Nov 20220.0 6.9 less than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.0.0 7.6 less than the yearly average.
Dec 2020 / Nov 202114.1 7.2 more than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.14.1 6.5 more than the yearly average.
Dec 2019 / Nov 20200.0 6.9 less than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.0.0 7.6 less than the yearly average.
Dec 2018 / Nov 20190.4 6.5 less than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.0.4 7.2 less than the yearly average.
Dec 2017 / Nov 20186.4 0.5 less than the Winter average.5.5 5.2 more than the Spring average.0.0  0.0 0.4 less than the Autumn average.11.9 4.3 more than the yearly average.
Dec 2016 / Nov 20170.1 6.8 less than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.0.1 7.5 less than the yearly average.
Dec 2015 / Nov 20162.0 4.9 less than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.2.0 5.6 less than the yearly average.
Dec 2014 / Nov 20151.4 5.5 less than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.1.4 6.2 less than the yearly average.
Dec 2013 / Nov 20140.0 6.9 less than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.0.0 7.6 less than the yearly average.
Dec 2012 / Nov 20130.9 6 less than the Winter average.0.1 0.2 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.1.0 6.6 less than the yearly average.
Dec 2011 / Nov 201213.0 6.1 more than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.13.0 5.4 more than the yearly average.
Dec 2010 / Nov 201122.4 15.5 more than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.22.4 14.8 more than the yearly average.
Dec 2009 / Nov 20105.6 1.3 less than the Winter average.0.0 0.3 less than the Spring average.0.0  2.5* 2.1 more than the Autumn average.8.1* 0.5 more than the yearly average.
Dec 2008 / Nov 200910.5 3.6 more than the Winter average.0.0 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.10.5 2.9 more than the yearly average.
Dec 2007 / Nov 2008---0.0* 0.3 less than the Spring average.0.0  0.0 0.4 less than the Autumn average.0.0* 7.6 less than the yearly average.
 
Max26.7 5.5 0.0 4.5 26.7
Avg6.9 0.3 0.0 0.4 7.6
Min0.0 0.0 0.0 0.0 0.0
 
 
DateCooling Degree Days
WinterSpringSummerAutumnYear
Dec 2023 / Nov 2024615.7 120.5 more than the Winter average.986.5 83 more than the Spring average.1489.1 85.3 less than the Summer average.977.6* 62.9 less than the Autumn average.4068.9* 55.3 more than the yearly average.
Dec 2022 / Nov 2023431.3 63.9 less than the Winter average.891.4 12.1 less than the Spring average.1589.3 14.9 more than the Summer average.1107.6 67.1 more than the Autumn average.4019.6 6 more than the yearly average.
Dec 2021 / Nov 2022501.9 6.7 more than the Winter average.909.7 6.2 more than the Spring average.1644.3 69.9 more than the Summer average.1067.7 27.2 more than the Autumn average.4123.6 110 more than the yearly average.
Dec 2020 / Nov 2021392.6 102.6 less than the Winter average.753.5 150 less than the Spring average.1513.1 61.3 less than the Summer average.1003.5 37 less than the Autumn average.3662.7 350.9 less than the yearly average.
Dec 2019 / Nov 2020611.0 115.8 more than the Winter average.924.5 21 more than the Spring average.1539.4 35 less than the Summer average.960.0 80.5 less than the Autumn average.4034.9 21.3 more than the yearly average.
Dec 2018 / Nov 2019558.3 63.1 more than the Winter average.976.8 73.3 more than the Spring average.1618.1 43.7 more than the Summer average.1009.7 30.8 less than the Autumn average.4162.9 149.3 more than the yearly average.
Dec 2017 / Nov 2018439.3 55.9 less than the Winter average.945.1 41.6 more than the Spring average.1739.7 165.3 more than the Summer average.1010.4 30.1 less than the Autumn average.4134.5 120.9 more than the yearly average.
Dec 2016 / Nov 2017505.0 9.8 more than the Winter average.1023.7 120.2 more than the Spring average.1598.5 24.1 more than the Summer average.1017.3 23.2 less than the Autumn average.4144.5 130.9 more than the yearly average.
Dec 2015 / Nov 2016669.5 174.3 more than the Winter average.876.2 27.3 less than the Spring average.1584.5 10.1 more than the Summer average.1015.0 25.5 less than the Autumn average.4145.2 131.6 more than the yearly average.
Dec 2014 / Nov 2015430.6 64.6 less than the Winter average.906.4 2.9 more than the Spring average.1518.9 55.5 less than the Summer average.1049.4 8.9 more than the Autumn average.3905.3 108.3 less than the yearly average.
Dec 2013 / Nov 2014598.0 102.8 more than the Winter average.1032.2 128.7 more than the Spring average.1606.1 31.7 more than the Summer average.1136.7 96.2 more than the Autumn average.4373.0 359.4 more than the yearly average.
Dec 2012 / Nov 2013431.3 63.9 less than the Winter average.731.6 171.9 less than the Spring average.1628.5 54.1 more than the Summer average.1060.2 19.7 more than the Autumn average.3851.6 162 less than the yearly average.
Dec 2011 / Nov 2012520.1 24.9 more than the Winter average.911.7 8.2 more than the Spring average.1482.1 92.3 less than the Summer average.962.8 77.7 less than the Autumn average.3876.7 136.9 less than the yearly average.
Dec 2010 / Nov 2011391.4 103.8 less than the Winter average.1062.4 158.9 more than the Spring average.1466.4 108 less than the Summer average.1164.1 123.6 more than the Autumn average.4084.3 70.7 more than the yearly average.
Dec 2009 / Nov 2010388.8 106.4 less than the Winter average.880.5 23 less than the Spring average.1601.0 26.6 more than the Summer average.948.4* 92.1 less than the Autumn average.3818.7* 194.9 less than the yearly average.
Dec 2008 / Nov 2009439.0 56.2 less than the Winter average.1017.5 114 more than the Spring average.1602.1 27.7 more than the Summer average.1181.1 140.6 more than the Autumn average.4239.7 226.1 more than the yearly average.
Dec 2007 / Nov 2008---530.1* 373.4 less than the Spring average.1543.9 30.5 less than the Summer average.1016.8 23.7 less than the Autumn average.3090.8* 922.8 less than the yearly average.
 
Max669.5 1062.4 1739.7 1181.1 4373.0
Avg495.2 903.5 1574.4 1040.5 4013.6
Min388.8 530.1 1466.4 948.4 3090.8
 
colour key
< 300 300 - 600 600 - 900 900 - 1200 1200 - 1500 1500 - 1800 1800 - 2100 2100 - 2400 2400 - 2700 2700 - 3000 3000 - 3300 3300 - 36003600>
* denotes incomplete data for the month/year.

A Degree Day is a unit of measurement equal to a difference of one degree between the mean outdoor temperature and a reference temperature (18°C). Degree Days are used in estimating the energy needs for heating or cooling a building.