w e a t h e r   r e v i e w    f o r   2 0 1 7


Warmer than the average for England and within the top quartile of warmest years on record, but not breaking any records. Like much of the UK, rainfall was below average.


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Summary for 2017


Air Temperatures:
The Highest Maximum: 31.9C on 19/06/17 at 16:55
The Lowest Maximum: -0.5C on 26/01/17 at 10:30
The Highest Minimum: 18.2C on 18/06/17 at 05:19
The Lowest Minimum: -4.8C on 11/12/17 at 06:40
The Mean Maximum: 14.6C
The Mean Minimum: 7.1C
The Overall Mean: 10.9C
Difference from the Monthly Mean: +0.4C

Relative Humidity:
Highest Relative Humidity: 100% on 123 days
Lowest Relative Humidity: 37% on 30/11/17 at 11:37
Mean Relative Humidity: 78%

Dew Point:
The Highest Dew Point: 21.1C on 21/06/17 at 19:40
The Lowest Dew Point: -6.1C on 11/12/17 at 00:20
The Mean Dew Point: 7.3C

Rainfall:
Total: 567.2mm
Percentage of the Monthly Mean: 86.1%
Duration of Rainfall: 268.7hr
Highest 24 hour fall (0900 to 0900): 26mm on 24/09/17
Rain Days (>/=0.2mm): 180
Wet Days (>/=1.0mm): 153

Sunshine:
Total Duration of Bright Sunshine: 1169.6hrs
Sunniest day: 16.3hrs on 18/06/17
No. of days without sunshine: 90
Percentage of the Monthly Mean: 84%

The Highest Solar Radiation: 1151 W/m2 on 07/06/17 at 15:00
The Highest UV Index: 8.4 on 10/06/17 at 13:20

Pressure (reduced to sea level):
The Highest Pressure: 1037.8mb on 19/04/17 at 10:13
The Lowest Pressure: 971.5mb on 10/12/17 at 11:40
Mean Pressure: 1009.8mb




Winds
Run of wind (mean over 24 hrs): 134.4miles
The Highest Average Wind Speed: 41.3mph on 25/08/17 at 09:45
Run of wind (cumulative): 49050.2miles
Highest Maximum Gust: 57.9mph on 23/02/17 at 14:47
Bearing of Maximum Gust: 282
No. of gusts of 50mph or more: 1
The Average Daily Wind Speed: 5.6mph

Winds from the Following Directions:
N 22
NE 22
E 12
SE 20
S 93
SW 55
W 71
NW 70
Calm 0



Grass
Lowest Grass Minimum: -6.7C on 11/12/17 at 07:40
Mean Grass Temperature: 11C

Concrete
Lowest Concrete Minimum: -4.4 C on 22/01/17 at 07:30
Mean Concrete Temperature: 12.3C

Evapotranspiration: 574.48mm

Days with:
Thunder: 6
Hail <5mm: 1
Hail >/=5mm: 0
Snow or snow & rain: 12
Snow lying: 10
Fog: 16
Air Frost: 29
Duration of Air Frost: 158.3hrs
Ground Frost: 47
Gales: 1

January

Headline:  Largely unsettled apart from a protracted dry spell in the second half which saw temperatures tumble.

February

Headline:  Predominantly unsettled and mild with frequent low pressure systems tracking across the country, A brief incursion of colder air during the second week bringing showers of sleet and snow.

March

Headline:  Mild with a predominance of south or south-westerly winds. Exceptionally mild during the final week which produced one of the warmest March days on record.

April

Headline:  Temperatures fairly static and rainfall substantially below average.

May

Headline:  Initially cool and rather cloudy, but then steadily warming but becoming unsettled at times with slow moving or stationary weather fronts bringing significant falls of rain. The first month of 2017 with above average rainfall.

June

Headline:  Unsettled at the start with most of the month’s rain falling within the first 9 days. Then turning warmer with a notable heatwave during the third week. Cooler, fresher and more unsettled towards the end.

July

Headline:  Temperatures generally in the low 20s with the exception of a few very warm days. Dry first half, wet second half.

August

Headline:  Generally cool and rather disappointing for summer with occasional wet spells. Becoming drier and warmer in the final week.

September

Unsettled for the most part with below average temperatures. A couple of milder spells early in the month and towards the end.

October

Headline:  Largely dry with rainfall substantially below average. Driest October locally since 1978. Mild for much of the month, but turning colder towards the end.

November

Headline:  A month with plenty of sunshine. Colder than average with below average rainfall.

December

Headline:  Generally cold during the first half with some notable snowfall on the 10th. Becoming more variable in the second half with incursions of milder and colder air.