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Otter Valley Weather Extremes (2005 - 2017) |
Otter Valley
weather extremes for 2017 and station records
(Weather extremes for
2018 will appear here around the beginning of March) |
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2017 |
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Station
Record |
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Temperature highs |
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31.1°C |
20th June |
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31.1°C |
20th June 2017 |
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Temperature lows |
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-4.1°C |
3rd January |
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-11.6°C |
26th December 2010 |
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Temperature lowest high |
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3.3°C |
11th February |
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-0.9°C |
25th December 2010 |
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Temperature highest low |
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18.4°C |
19th July |
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19.2°C |
1st July 2015 |
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Warmest daily
mean |
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23.0°C |
20th June |
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23.3°C |
19th July 2006 |
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Coldest daily
mean |
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0.9°C |
11th February |
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-6.0°C |
19th December 2010 |
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Warmest monthly
mean |
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18.0°C |
July |
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20.1°C |
July 2006 |
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Coldest monthly mean |
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6.1°C |
January |
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0.7°C |
December 2010 |
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Warmest annual
mean |
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11.8°C |
2017 |
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12.1°C |
2014 |
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Coldest annual
mean |
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10.0°C |
2010 |
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Highest monthly
anomaly |
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+2.3°C |
March |
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+5.0°C |
December 2015 |
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Lowest
monthly anomaly |
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-0.4°C |
November |
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-5.6°C |
December 2010 |
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Grass temp lows |
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-6.9°C |
3rd January |
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-10.8°C |
7th January 2010 |
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Rainfall in 15
minutes |
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3.8 mm |
8th
September |
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10.4 mm |
30th
October 2008 |
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Rainfall in 1 hour |
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8.8 mm |
1st May |
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24.1 mm |
12th June 2006 |
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Rainfall in 24 hours |
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34.0 mm |
1st May |
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70.8 mm |
30th October 2008 |
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Rainfall in 1 month |
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97.1 mm |
December |
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188.9 mm |
November 2009 |
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Rainfall in 1 year |
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748.6 mm |
2017 |
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1370 mm |
2012 |
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Driest Month |
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21.4 mm |
April |
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5.9 mm |
July 2016 |
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Driest Year |
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748.6 mm |
Year 2017 |
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712 mm |
2011 |
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Max Sunshine in 1 day |
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15.6 Hours |
18th June |
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15.8 hours |
25th June 2010 |
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Max Sunshine in 1 month |
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210.9 Hours |
June |
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328.2 hours |
July 2013 |
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Max Sunshine in 1 year |
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1757 Hours |
Year 2017 |
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2019 hours |
2010 |
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Dullest month |
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80.6 Hours |
February |
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49.1 Hours |
November 2015 |
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Dullest Year |
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- |
- |
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1681 Hours |
2011 |
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UV Index high |
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9.1 |
8th July |
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10.0 |
14th July 2014 |
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Solar irradiance high |
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1282 W/m² |
7th June |
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1320 W/m² |
4th May 2015 |
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Solar irradiance 1-hour
ave high |
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1066 W/m² |
25th June |
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-.- W/m² |
-.- |
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Solar energy daily high |
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30.44 MJ/m² |
18th June |
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33.1 MJ/m² |
19th June 2012 |
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Solar energy daily low |
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0.84 MJ/m² |
31st January |
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-.- MJ/m² |
-.- |
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Wind high |
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44 mph |
23rd November |
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58 mph |
10th March 2008 |
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Windiest day |
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370 miles |
22nd November |
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405 miles |
6th February 2016 |
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Windiest month |
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3693 miles |
March |
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6632 miles |
December 2015 |
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Calmest day |
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6 miles |
8th January |
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1 mile |
11th December 2008 |
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Calmest month |
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2009 miles |
November |
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1293 miles |
September 2014 |
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Pressure highs |
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1038.5 hPa |
18th January |
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1043.9 hPa |
27th December 2016 |
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Pressure lows |
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975.6 hPa |
11th December |
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961.1 hPa |
10th March 2008 |
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Dewpoint
high |
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21.8°C |
20th June |
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21.8°C |
20th
June
2017 |
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Dewpoint
low |
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-5.3°C |
3rd January |
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-14.3°C |
26th
December 2010 |
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Relative
humidity low |
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47% |
17th June |
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27% |
9th July 2013 |
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30 cm soil temp highs |
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21.3°C |
10th July |
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21.3°C |
27th July 2014 |
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30 cm soil temp lows |
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6.1°C |
17th December |
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0.3°C |
8th January 2009 |
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100 cm soil temp highs |
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19.5°C |
13th July |
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19.6°C |
30th July 2014 |
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100 cm soil temp lows |
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8.3°C |
20th December |
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4.0°C |
10th January 2009 |
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Highest
snow depth |
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0 cm |
No snow lying |
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28
cm |
20th
December 2010 |
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Longest
snow cover1 |
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0 days |
No snow lying |
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10
days |
17th -
26th Dec 2010 |
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Least snow
days in a year2 |
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1 day |
11th February |
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0
days |
2007,11,12,14,15
& 16 |
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Most snow
days in a year2 |
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0 days |
No snow falling |
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4
days |
2009 & 2010 |
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Sea
surface temp highs |
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22.1°C |
19th June |
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22.1°C |
19th June 2017 |
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Sea
surface temp lows |
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7.8°C |
13th
February |
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5.4°C |
27th
December 2010 |
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Least frost
nights |
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- |
- |
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18 days |
2014 |
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Most frost
nights |
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26 days |
Year 2017 |
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64 days |
2010 |
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Frostiest
night3 |
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16.0 hours |
28th
December |
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24 hours |
25th December 2010 |
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Frostiest
month3 |
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69.1
hours |
December |
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373 hours |
December 2010 |
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Thunder
days in a month4 |
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3 Days |
May |
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6 days |
July 2014 |
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Thunder
days in a year4 |
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11 Days |
Year 2017 |
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23 days |
2014 |
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Updated on the
1st January 2018.
This page is
usually updated at the end of every month. |
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Most records
go back to May 2005, which is when this station started
recording weather for the Otter Valley. Sea surface
temperature records are for Lyme Bay and date from early
2003. Sunshine recording was added late 2006 and started
collecting data in 2007. Soil and grass temperature readings
started in 2007. UV Index recording started in January 2011.
1Longest continuous snow cover of at least 50% of
the ground. 2Snow days are defined as snow seen
falling. 3Frostiest days are defined as the time
duration with temperatures below 0.0°C. 4Thunder
days are defined as days when thunder is heard. |
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