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UK Extremes

High Temp
23.8° C
London / Heathrow Airport
Low Temp
3.3° C
Cairnwell
Precipitation
16.8 mm
Baltasound


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This Stations Daily Degree Days Reports (18°C)

Report for the Year 2025

Data last updated: 23/06/25 - 21:00

Other Years:


 Daily DetailMonthly SummarySeasonal Summary 


DayHeating Degree DaysCooling Degree Days
JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJulAugSepOctNovDec
10.0 0.0 0.0 0.0 0.0 0.0 ------------------8.8 5.8 4.3 9.6 18.3 16.4 ------------------
20.0 0.0 0.0 0.0 0.0 0.0 ------------------2.3 4.3 3.9 10.9 19.0 15.8 ------------------
30.0 0.0 0.0 0.0 0.0 0.0 ------------------0.2 5.5 4.3 13.3 14.6 12.9 ------------------
40.0 0.0 0.0 0.0 0.0 0.0 ------------------1.1 8.1 4.7 15.9 10.2 14.4 ------------------
50.0 0.0 0.0 0.0 0.0 0.0 ------------------10.0 5.7 5.7 12.8 8.2 13.0 ------------------
60.0 0.0 0.0 0.0 0.0 0.0 ------------------6.4 4.3 8.7 10.7 9.0 14.0 ------------------
70.0 0.0 0.0 0.0 0.0 0.0 ------------------3.0 3.3 10.3 9.9 11.4 12.3 ------------------
80.0 0.0 0.0 0.0 0.0 0.0 ------------------1.0 4.0 11.1 10.0 11.5 13.4 ------------------
90.0 0.0 0.0 0.0 0.0 0.0 ------------------1.2 3.7 11.7 9.5 12.2 15.5 ------------------
100.0 0.0 0.0 0.0 0.0 0.0 ------------------0.2 3.6 11.5 9.1 14.9 17.3 ------------------
110.0 0.0 0.0 0.0 0.0 0.0 ------------------0.3 3.9 6.7 12.8 16.5 17.1 ------------------
120.0 0.0 0.0 0.0 0.0 0.0 ------------------3.3 4.3 4.8 13.4 15.4 17.0 ------------------
130.0 0.0 0.0 0.0 0.0 0.0 ------------------4.5 4.0 3.8 11.5 17.6 20.3 ------------------
140.0 0.0 0.0 0.0 0.0 0.0 ------------------6.2 4.2 3.9 10.5 16.1 18.6 ------------------
150.0 0.0 0.0 0.0 0.0 0.0 ------------------8.0 5.6 4.4 11.6 11.9 17.6 ------------------
160.0 0.0 0.0 0.0 0.0 0.0 ------------------7.2 2.7 4.0 11.0 14.2 18.2 ------------------
170.0 0.0 0.0 0.0 0.0 0.0 ------------------5.6 3.3 6.0 11.0 13.7 19.9 ------------------
180.0 0.0 0.0 0.0 0.0 0.0 ------------------3.6 3.6 6.1 10.0 13.1 20.9 ------------------
190.0 0.0 0.0 0.0 0.0 0.0 ------------------3.0 7.1 7.9 12.0 13.4 22.6 ------------------
200.0 0.0 0.0 0.0 0.0 0.0 ------------------3.6 10.7 12.7 9.7 15.9 22.6 ------------------
210.0 0.0 0.0 0.0 0.0 0.0 ------------------4.2 11.7 12.5 11.1 13.4 22.8 ------------------
220.0 0.0 0.0 0.0 0.0 0.0 ------------------3.7 9.9 11.6 10.9 13.6 19.2 ------------------
230.0 0.0 0.0 0.0 0.0 1.9 ------------------5.3 9.7 11.3 10.2 14.5 0.0 ------------------
240.0 0.0 0.0 0.0 0.0 ---------------------9.5 10.3 7.6 10.7 15.8 ---------------------
250.0 0.0 0.0 0.0 0.0 ---------------------5.3 8.1 10.6 10.6 15.4 ---------------------
260.0 0.0 0.0 0.0 0.0 ---------------------5.8 6.0 12.0 12.7 14.3 ---------------------
270.0 0.0 0.0 0.0 0.0 ---------------------7.4 6.2 9.4 15.3 13.6 ---------------------
280.0 0.0 0.0 0.0 0.0 ---------------------8.5 4.8 10.1 15.2 16.2 ---------------------
290.0  0.0 0.0 0.0 ---------------------6.1  9.0 16.0 16.9 ---------------------
300.0  0.0 0.0 0.0 ---------------------4.5  12.6 17.3 18.0 ---------------------
310.0  0.0  0.0  ------ --- ---6.9  10.5  19.3  ------ --- ---
 
 Heating Degree DaysCooling Degree Days
 JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJulAugSepOctNovDec
High0.00.00.00.00.01.9------------------10.011.712.717.319.322.8------------------
Avg0.00.00.00.00.00.1------------------4.75.98.211.814.416.6------------------
Low0.00.00.00.00.00.0------------------0.22.73.89.18.20.0------------------
 
Colour Key
< 5.0 5.0 - 10.0 10.0 - 15.0 15.0 - 20.0 20.0 - 25.0 25.0 - 30.0 30.0 - 35.0 35.0 - 40.0 40.0 - 45.0 45.0 - 50.0 50.0 - 55.0 55.0 - 60.060.0>

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.