Weather Averages for 2015

The table below compares the temperatures and rainfall experienced in Great Bealings, Suffolk, with the averages from 1971-2000 for RAF Wattisham (about 13 miles East of Bealings). The Wattisham data is taken from the Met Office website.

 
Average Max Temp
2015 Average Max Temp
Difference
Average Min Temp
2015 Average Min Temp
Difference
Average Rainfall
2015 Rainfall
Difference
Days of Rainfall >= 1mm
Days of Rainfall >= 1mm in 2015
Difference
Days with Air Frost
Days with Air Frost in 2015
Difference
Month
[deg C]
[deg C]
[deg C]
[deg C]
[deg C]
[deg C]
[mm]
[mm]
[mm]
[days]
[days]
[days]
[days]
[days]
[days]
Jan
6.3 7.2 +0.9 0.7 1.3 +0.6 49.5 63.4 +13.9 11.0 14 +3.0 11.5 9 -2.5
Feb 6.6 7.0 +0.4 0.7 1.3 +0.6 35.1 38.0 +2.9 8.5 9 +0.5 11.1 7 -4.1
Mar
9.5 10.8 +1.3 2.3 2.0 -0.3 42.5 21.2 -21.3 10.6 6 -4.6 6.4 8 +1.6
Apr
11.9 14.2 +2.3 3.7 2.9 -0.8 41.2 18.8 -22.4 8.7 5 -3.7 3.8 2 -1.8
May
15.8 16.5 +0.7 6.8 6.2 -0.6 43.7 42.8 -0.9 8.2 12 +3.8 0.5 2 +1.5
Jun
18.7 20.3 +1.6 9.5 8.7 -0.8 52.2 13.2 -39.0 8.7 6 -2.7 0.0 0 0.0
Jul
21.4 22.9 +1.5 11.8 11.8 0.0 42.4 57.8 +15.4 7.8 10 +2.2 0.0 0 0.0
Aug
21.6 21.7 +0.1 11.9 12.4 +0.5 47.1 52.4 +5.3 7.3 11 +3.7 0.0 0 0.0
Sep
18.3 17.4 -0.9 9.9 8.6 -1.3 55.1 52.6 -2.5 8.6 8 -0.6 0.0 0 0.0
Oct
13.9 14.2 +0.3 7.2 6.9 -0.3 57.2 33.0 -24.2 9.0 8 -1.0 0.4 0 -0.4
Nov
9.3 12.7 +3.4 3.5 7.1 +3.6 55.6 66.6 +11.0 10.4 15 +4.6 5.4 3 -2.4
Dec
7.1 12.2 +5.1 1.9 8.0 +6.1 52.1 41.2 -10.9 10.6 13 +2.4 9.0 0 -9.0
Year
13.4 14.8 +1.4 5.9 6.5 +0.6 573.7 501.0 -72.7 109.4 117 +7.6 48.1 31 -17.1

Temperatures in 2015

This is how the temperature varied in 2015:

Temperatures in 2014

Monthly Minima, Maxima and Averages for 2015

Month
Temperature
Pressure
Humidity
Gust
Average Wind
Min
Max
Ave
Min
Max
Ave
Min
Max
Ave
Max
Ave
Max
Ave
Jan
-5.4
14.4
4.4
975
1036
1013
57
99
89
31
7.0
20
4.4
Feb
-2.2
11.2
4.0
988
1041
1016
62
98
89
29
5.8
20
3.6
Mar
-2.6
15.9
6.4
989
1039
1020
49
99
83
35
6.7
23
4.2
Apr
-1.5
23.6
8.4
1003
1038
1021
39
100
81
27
4.3
16
2.6
May
-0.9
22.2
11.3
988
1027
1014
43
99
81
30
5.2
18
3.0
Jun
3.3
26.0
14.6
1000
1034
1019
39
99
78
26
4.3
14
2.4
Jul
5.9
30.1
17.0
995
1026
1013
33
100
79
23
4.7
14
2.7
Aug
7.5
27.2
16.9
996
1024
1014
41
99
83
25
3.7
12
1.9
Sep
3.2
21.1
12.7
984
1038
1017
53
99
87
19
3.2
12
1.8
Oct
1.5
17.6
10.7
996
1033
1018
62
99
91
15
2.8
10
1.5
Nov
-1.5
16.8
9.9
997
1030
1014
68
99
90
42
7.4
22
4.5
Dec
3.3
15.4
10.3
1005
1034
1018
70
99
90
29
8.4
18
5.0
2015
-5.4
30.1
10.6
975
1041
1016
33
100
85
42
5.3
23
3.1

Solar data for 2015

 
Max
sunshine
Actual
Sunshine
Percent
Average
sunshine
Percent
Energy
predicted
Energy
generated
Percent
Month
[hours]
[hours]
[hours]
 
[kwH]
[kwH]
Jan
251     63.9   109    
Feb 284     83.0   167    
Mar
365     116.0   324    
Apr
412 178.5 43% 173.7 103% 461 446 97%
May
481 142.4 30% 211.9 67% 508 468 92%
Jun
491 168.9 34% 208.5 81% 502 512 102%
Jul
494 128.9 26% 217.3 59% 508 454 89%
Aug
446 99.8 22% 204.5 49% 440 374 85%
Sep
374 99.7 27% 151.7 66% 353 328 93%
Oct
324 64.0 20% 119.8 53% 235 196 83%
Nov
258 31.6 12% 74.8 42% 139 98 70%
Dec
236 32.8 14% 56.6 58% 97 76 78%
YTD
2252 653.9 29% 877.2 75% 3243 2952 91%
Year
4416     1681.5   3843    

Weather Commentary

Month

Commentary

January 2015 The month started warm and wet, but then about mid-month turned notably colder. There were occasional slight dustings of snow, but nothing that really laid.
February 2015 Very similar to January, really. Felt cool but was about average. Some very pleasant days at the end of the month.
March 2015 Notable for very little rainfall at the start of the month: there was no day with more than 1mm until the 24th, a mini-drought. Other than that: nothing special again. It felt cool but statistically was average. The 31st had consistently high winds and was, on average, the windiest day I've recorded.
Updates to my recording sytem were the addition of a solar power meter on the 13th and solar panels on the 25th. Data from these will appear in April, the first full month for both.
April 2015 In comparison to my previous records, April was about average in temperature and dry. It seems that April is always dry here, so a good time to go on holiday. In comparison to the long-term trends from Wattisham, the days were quite warm and the nights cold. Certainly towards the end of the month, it felt cold.
I've now added some information from my solar power meter and solar photovoltaic system. The predicted energy output comes from the EU Joint Research Centre estimating tool. This estimates higher energy output than the one that PV installers are required by law to use, by a factor of about 13%. So, for April we generated more power than we were promised, but slightly less than best theory predicts.
May 2015 Pretty much average for everything.
June 2015 We were on holiday for almost all of June, so a personal commentary is not possible. However, it's clear that it was quite dry, and was hot towards the end of the month - the news was full of "hottest day of the year" stories and advice on how to cope in a heatwave. For us, the maximum was just over 25°C: hardly unbearable. Perhaps our predominant south easterly blowed colder air from the sea.
July 2015 Started hot and dry, finished cool and wet. Up until the 24th, we had been experiencing a dry spell lasting from mid-May, and the maximum daily temperature had rarely fallen below the long-term norm. From the 24th onwards, we had 39mm of rain and the maximum daily temperature never rose above the long-term norm.
August 2015 It seems like it was a pretty awful month: cool and wet. In fact, the start of the month was quite warm and dry and it's only the short-term memory of all the later rain that has made this effect. Also, given that for me August has been statistically the wettest month of the year means that this one was comparatively dry. Not sure that would help everyone who was flooded out on the Bank Holiday, though.
September 2015 On average, the coldest September I've recorded, over half a degree colder than the previous coldest (2008). The final week was rather pleasant - no rain, sunny and feeling warm. A large proportion of the rain fell in a single day: the 16th, when we had almost an inch, and 10mm of that (good mixed units here) fell in a 10 minute spell. Had our new Air Source Heat Pump installed in the middle of the month.
October 2015 My abiding memory of October was how dull it was. We seemed to have day after day of overcast weather. Rainfall was below average, and it counted as quite cool (albeit with no frost). But dull. 1st of November, in contrast: a lovely sunny autumn day.
November 2015 November 2015 was, on average, the hottest November I've recorded. It averaged 9.9°C: the previous warmest was last year, 2014, with an average of 9.0°C. Rather like October, the abiding memory was of dull, overcast weather. There was a notable chilly spell around the 23rd, with some night frost, but otherwise dull and warm.
December 2015 If we thought November was unusual for being warm, December was extraordinary. It was, on average, warmer than November, and was around 5°C warmer than normal. The daily maximum was always above the long-term expected maximum, and the minimum was always above the expected minimum. It was frequently above the expected maximum. There were no frosts, with the minimum recorded temperature being 3.3°C. It was the windiest month I've ever recorded, with continuing South Westerlies the order of the day.
The UK weather would seem to have been caused by the jetstream running initially to the South of the UK, and then up and over it, bringing warm, wet weather from the South. As is common, East Anglia avoided most of the rain, but North Wales, Cumbria and the North of England saw very heavy rainfall and flooding. They were extra unlucky, since the flooding was bad enough for them to have a Prime Ministerial visit.