Weather Averages for 2017

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
2017 Average Max Temp
Difference
Average Min Temp
2017 Average Min Temp
Difference
Average Rainfall
2017 Rainfall
Difference
Days of Rainfall >= 1mm
Days of Rainfall >= 1mm in 2017
Difference
Days with Air Frost
Days with Air Frost in 2017
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 5.9 -0.4 0.7 -0.3 -1.0 49.5 37.2 -12.3 11.0 7 -4.0 11.5 16 +4.5
Feb 6.6 8.7 +2.1 0.7 3.8 +3.1 35.1 40.4 +5.3 8.5 10 +1.5 11.1 1 -10.1
Mar
9.5 13.0 +3.5 2.3 4.8 +2.5 42.5 24.4 -18.1 10.6 7 -3.6 6.4 0 -6.4
Apr
11.9 14.2 +2.3 3.7 3.7 0.0 41.2 5.4 -35.8 8.7 3 -5.7 3.8 3 -0.8
May
15.8 18.3 +2.5 6.8 8.6 +1.8 43.7 57.6 +13.9 8.2 7 -1.2 0.5 0 -0.5
Jun
18.7 22.2 +3.5 9.5 12.0 +2.5 52.2 43.8 -8.4 8.7 6 -2.7 0.0 0 0
Jul
21.4 22.4 +1.0 11.8 12.4 +0.6 42.4 56.6 +14.2 7.8 9 +1.2 0.0 0 0
Aug
21.6 21.5 -0.1 11.9 11.3 -0.6 47.1 49.0 +1.9 7.3 10 +2.7 0.0 0 0
Sep
18.3 18.3 0.0 9.9 9.3 -0.6 55.1 25.0 -30.1 8.6 9 +0.4 0.0 0 0
Oct
13.9 16.3 +2.4 7.2 9.0 +1.8 57.2 20.4 -36.8 9.0 5 -4.0 0.4 0 -0.4
Nov
9.3 9.8 +0.3 3.5 3.5 0.0 55.6 20.8 -34.8 10.4 7 -3.4 5.4 5 -0.4
Dec
7.1 7.1 0.0 1.9 2.4 +0.5 52.1 81.4 +29.3 10.6 13 +2.4 9.0 10 +1.0
YTD                              
Year
13.4 14.9 +1.5 5.9 6.7 +0.8 573.7 462.0 -111.7 109.4 93 -16.4 48.1 35 +13.1

Temperatures in 2017

This is how the temperature varied in 2017:

Temperatures in 2014

Monthly Minima, Maxima and Averages for 2017

Month
Temperature
Pressure
Humidity
Gust
Average Wind
Min
Max
Ave
Min
Max
Ave
Min
Max
Ave
Max
Ave
Max
Ave
Jan
-7.1
9.7
2.8
991
1039
1022
63
99
92
33
4.3
21
2.6
Feb
-0.1
17.3
6.3
982
1030
1013
67
100
92
44
6.1
27
3.7
Mar
1.6
19.4
8.7
987
1033
1014
30
100
86
24
5.9
15
3.6
Apr
-1.7
20.6
8.9
999
1038
1021
39
99
80
20
4.7
14
2.9
May
1.4
25.8
13.2
995
1027
1016
39
99
84
24
3.8
12
2.0
Jun
8.4
28.9
17.0
985
1026
1012
43
100
80
26
5.1
15
2.9
Jul
6.4
27.0
17.3
1000
1024
1013
49
99
82
21
4.4
13
2.4
Aug
7.2
27.1
16.3
1004
1023
1015
45
99
83
23
3.7
13
2.0
Sep
4.2
20.9
13.5
989
1024
1013
46
99
88
30
4.3
16
2.4
Oct
2.9
21.6
12.7
998
1034
1017
50
99
86
31
6.1
18
3.5
Nov
-4.1
14.9
6.8
986
1029
1015
60
98
90
30
5.7
17
3.5
Dec
-2.7
12.6
4.8
971
1036
1012
71
100
93
32
6.6
17
4.1
2017
-7.1
28.9
10.7
971
1039
1015
30
100
86
44
5.0
27
3.0

Solar data for 2017

 
Max
sunshine
Actual
Sunshine
Percent
Average
sunshine
Percent
Energy
predicted
Energy
generated
Percent
Month
[hours]
[hours]
[hours]
 
[kwH]
[kwH]
Jan
251 62.1 25% 63.9 97% 109 125 115%
Feb 284 34.2 12% 83.0 41% 167 125 75%
Mar
365 96.1 26% 116.0 83% 324 334 104%
Apr
412 117.1 28% 173.7 67% 461 408 89%
May
481 115.1 24% 211.9 54% 508 465 92%
Jun
491 137.9 28% 208.5 66% 502 509 101%
Jul
494 111.0 22% 217.3 51% 508 477 94%
Aug
446 99.6 22% 204.5 49% 440 374 85%
Sep
374 77.4 21% 151.7 51% 353 287 81%
Oct
324 62.1 19% 119.8 52% 235 198 84%
Nov
258 70.8 27% 74.8 95% 139 153 110%
Dec
236 51.9 22% 56.6 92% 97 90 93%
YTD
               
Year
4416 1035.3 23% 1681.5 62% 3843 3392 88%

Weather Commentary

Month

Commentary

January 2017 Difficult to comment on the actual weather again, since we were away in Kenya and Tanzania for most of January. Given that both are very near the equator, it was clearly hotter there than in Bealings. Looking at the data, it's clear that there was a very cold snap in the middle of the month: -7.1°C is the coldest we have experienced since January 2013. It was also comparatively sunny.
February 2017 Statistically, February was warm and gloomy - we had a new record warmest February day on the 20th (a whole 0.1°C hotter than the previous highest) and the overnight minimum was almost always higher than the expected minimum. Sunlight hours and PV generation were quite down. It actually felt like quite a cold month, but perhaps that compares with Africa in January. The most notable feature was storm Doris on the 23rd, which set a new maximum gust recorded of 51 mph and equalled my highest recorded average speed. No damage here, though.
March 2017 The hottest March I've recorded, and very pleasant, warm, spring-like weather towards the end of the month. Quite dry at the end of the month, too - only about 6 mm of rain in the last 22 days of the month. No frosts at all.
April 2017 Another dry April. It was the third driest month I've recorded - interesting to note that I've recorded four months with less than 6mm of rain - and all of these months were April. It was quite cool with quite a sharp frost in the middle of the month that killed off the wisteria blooms - they look very sad now. Hoping for some rain in May.
May 2017 The dry spell which had lasted since the middle of March ended with some decent rain in the middle of May. Although the month was wetter than average, there were fewer days with rain and so the rain we got was concentrated on a few wet days. It felt quite chilly at the start, but ended pleasantly warm - a few days were verging on hot.
June 2017 By a small margin, the hottest June I've recorded - an average of 17.0°C compared with 16.7 in 2004. We had a period of 18 days when no rain fell (a mini-drought in my parlance) and it was generally dry - most of the rain fell on just 2 days. Not surprisingly, given the low rainfall, it was generally sunny.
July 2017 Started quite warm and sunny and with a continuing dry spell for the first 10 days. We then seemed to get more generally cloudy weather (the forecasts were either "light cloud" or "sunny intervals" with fair spells of rain. Overall - average for temperature, average for rain, average for sun.
August 2017 Started quite wet and then a fairly dry spell in the middle of the month. Ended cold and wet. The middle of the month was notable for generally cloudy conditions, with little full sunshine.
September 2017 Dull and damp. We actually had some form of rain (it could be as little as 0.2mm) on 23 out of the 30 days of September. However, the most rain we ever had in a single day was 3.2mm, so the month counted as quite dry. Sunshine was down, electricity generation was down and temperatures were almost exactly on the long-term average. It was the third coldest September I've recorded since 2004.
October 2017 Comparatively warm and notably dry - actually the driest October I've measured, albeit by only 0.4mm - barely a heavy dew. It continues the run of dry weather we have had recently and continues a "dry spell" (which I define as rain over 15 days below the average) lasting from August 23rd. Also the dull, overcast trend continues.
November 2017 The defining feature was the run of dry weather continuing. All three autumn months had rainfall of at least 30mm less than normal, and my "dry spell" that started on August 23rd continues. Looking at this graph we see that the weather has been dry since June 2016. Aprt from that, of note was the almost average temperature, albeit with a quite significant cold snap at the end and a dusting of snow on the evening of the 30th. Above average sunshine and power generation.
December 2017 By a considerable margin, the wettest month of the year. Some of the precipitation was snow - a fairly decent fall of an inch or two in mid-month. It ended the second longest dry spell I've recorded - 109 days between 23rd August and 10th December. There was a very cold snap in the middle of the month which made it one of the colder Decembers I've recorded.

Overall a dryish but otherwise fairly average year.