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A very wet and cold month...
was cold with a mean temp overall 1.7deg below normal. Although
temperatures for much of the month were around normal, the periods 1st-4th
and 17th-19th were cold.
Air frosts were recorded 1st-4th and 18th-21st.
The lowest minima were –6.9C on 1st and –4.9C on 2nd.
March rainfall was the greatest since 1981122.8mm (224% of normal).
25 days experienced rainfall, the wettest being 30th when
22mm fell on already saturated ground, but 10 more days seeing more than
5mm daily rainfall. The number of raindays, wetdays and very wetdays are
all new records for March.
fell on 4 days, with 2nd
–3rd producing 12.5cm and 17th – 18th
giving 13.5cm, making a monthly total of 26cm.
There was lying snow at 0900h on 6 days, 1st- 4th,
18th – 19th, greatest depths being 13cm on 3rd
and 13.5cm on 18th.
was recorded on 4th, 12th, 27th and 30th.
Windiest days were 1st, 2nd, then 17th,
19th and 18th.
Sunniest days were between 16th - 26th, and
dullest 1st – 3rd , 12th and 31st.
The mean pressure 1001.9mb was a new record low, beating 1002.4mb in
mean max (C)
1.4 mean min (C)
4.8 mean (C)
-1.7 diff from av (C)
15.0 high max (C) on 25
- 2.1 low max (C) on
6.2 high min (C) on
- 6.9 low min (C) on 1
rain total (mm) 224 % of av
Most rain was 22.0mm on 30th
25 raindays (days with >=0.2mm)
20 wetdays (days with >=1mm)
11 very wet days (days with >=5mm)
frost on 20 days
Air frost on 8 days
4 days with fog 4,12,27,30
77% cloud cover percent
91% mean RH
pressure was 1001.9mb (lowest in 63 years)
Annual Summary for 2017
Overall a mild year with 6th highest mean
temperature.Mean min temps were +1.0deg,
mean temps +0.8deg and mean max temps +0.6deg above normal.
There were just 33 airfrosts (7th fewest) and 87 ground
Rainfall was 105% of normal, with 202 raindays, 147 wetdays and 62
(9th highest, about 10%
April 20mm and October 34mm were especially dry months
while wettest months were September with 100mm and December with
Wettest day was 28.2mm on 26/12/17.Snow fell on 7 days,
majority 31.4cm falling between 8th and 11th Dec
(most in one
day was 12cm on 10th Dec).
14.5 mean max (C) , +0.6 diff from av (C) 11th highest
6.9 mean min (C) , +1.0 diff from av (C) 5th highest
10.7 mean (C), +0.8 diff from av (C) 6th highest
HiMax 33.8C on 19/6/17 8th
LoMax -0.3C on 26/1/17
HiMin 16.8C on 20/6/17
LoMin -7.0C on 12/12/17
Highest Mean 25.0C on 19/6/2017
Lowest Mean –1.8C on 12/12/2017
806.4 rain total (mm), 105 % of av
202 raindays (with 0.2mm or more) 9th highest (average is 180)
147 wetdays (with 1mm or more) 8th highest
(average is 133)
62 verywetdays (with 5mm or more) 9th highest
28.2 most rainfall in a day (mm) on 26/12/2017
The distribution of
rainfall has been uneven:
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT
78.4 58.5 74.4 20.3 61.2 45.9
73.9 75.4 100.4 34.4 59.5
7 days with snow falling, 1 in Jan, 1 in Feb, 5 in Dec. 9 days with 50%
Snow totalled 32.9cm, and most snow falling in a day was 12 cm on
1015.8 mean pressure (mb) , +0.3 pressure anomaly (mb)
1038.5 max pressure at any time of day, on 18/1/2017
976.1 min pressure at any time
of day, on 10/12/2017
FROSTS The last frost was 27/4/17,the first
30/10/17,186 days were frost free
There were 33 air frosts (the 7th fewest
in 63 years)
There were 87 ground frosts flagged (91 days had min temp below 3C
and 84 days had min temp below 2.456C)
THUNDER 4 days with thunder heard,
28/3 5/8 18/8 16/9
HUMIDITY 88.6% at 0900
CLOUD COVER 62.4% at 0900