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Otter Valley Weather Extremes (2005 - 2016) |
Otter Valley
weather extremes for 2016 and station records |
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2016 |
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Station
Record |
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Temperature highs |
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27.2°C |
19th July |
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30.8°C |
19th July 2006 |
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Temperature lows |
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-4.6°C |
16th January |
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-11.6°C |
26th December 2010 |
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Temperature lowest high |
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6.0°C |
1st December |
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-0.9°C |
25th December 2010 |
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Temperature highest low |
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18.4°C |
6th Sept |
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19.2°C |
1st July 2015 |
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Warmest monthly
mean |
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18.1°C |
August |
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20.1°C |
July 2006 |
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Coldest monthly mean |
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6.6°C |
February |
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0.7°C |
December 2010 |
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Warmest annual
mean |
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11.7°C |
2016 |
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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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+2.0°C |
December |
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+5.0°C |
December 2015 |
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Lowest
monthly anomaly |
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-0.6°C |
March |
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-5.6°C |
December 2010 |
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Grass temp lows |
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-6.1°C |
2nd December |
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-10.8°C |
7th January 2010 |
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Rainfall in 15
minutes |
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7.0 mm |
15th June |
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10.4 mm |
30th
October 2008 |
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Rainfall in 1 hour |
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14.0 mm |
17th June |
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24.1 mm |
12th June 2006 |
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Rainfall in 24 hours |
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45.8 mm |
21st
November |
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70.8 mm |
30th October 2008 |
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Rainfall in 1 month |
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144.8 mm |
November |
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188.9 mm |
November 2009 |
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Rainfall in 1 year |
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798 mm |
2016 |
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1370 mm |
2012 |
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Driest Month |
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5.9 mm |
July |
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5.9 mm |
July 2016 |
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Driest Year |
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- |
- |
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712 mm |
2011 |
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Max Sunshine in 1 day |
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15.2 Hours |
18th July |
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15.8 hours |
25th June 2010 |
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Max Sunshine in 1 month |
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241.6 Hours |
August |
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328.2 hours |
July 2013 |
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Max Sunshine in 1 year |
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1890 Hours |
2016 |
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2019 hours |
2010 |
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Dullest month |
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65.0 Hours |
December |
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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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10.0 |
16th July |
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10.0 |
14th July 2014 |
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Solar irradiance high |
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1238 W/m² |
18th May |
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1320 W/m² |
4th May 2015 |
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Solar energy high |
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29.46 MJ/m² |
29th May |
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33.1 MJ/m² |
19th June 2012 |
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Wind high |
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50 mph |
28th March |
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58 mph |
10th March 2008 |
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Windiest day |
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405 miles |
6th February |
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405 miles |
6th February 2016 |
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Windiest month |
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4343 miles |
January |
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6632 miles |
December 2015 |
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Calmest day |
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3 miles |
29th October |
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1 mile |
11th December 2008 |
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Calmest month |
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1973 miles |
October |
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1293 miles |
September 2014 |
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Pressure highs |
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1043.9 hPa |
27th December |
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1043.9 hPa |
27th December 2016 |
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Pressure lows |
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968.8 hPa |
20th Nov |
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961.1 hPa |
10th March 2008 |
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Dewpoint
high |
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21.5°C |
5th
Sept |
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21.5°C |
5th
September
2016 |
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Dewpoint
low |
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-5.6°C |
16th
February |
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-14.3°C |
26th
December 2010 |
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Relative
humidity low |
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38% |
30th
April |
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27% |
9th July 2013 |
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30 cm soil temp highs |
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20.7°C |
20th July |
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21.3°C |
27th July 2014 |
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30 cm soil temp lows |
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7.1°C |
19th February |
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0.3°C |
8th January 2009 |
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100 cm soil temp highs |
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19.2°C |
24th July |
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19.6°C |
30th July 2014 |
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100 cm soil temp lows |
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9.9°C |
14th March |
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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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0 days |
No snow falling |
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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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20.4°C |
18th July |
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22.5°C |
10th
August 2003 |
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Sea
surface temp lows |
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8.4°C |
9th
March |
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5.4°C |
27th
December 2010 |
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Least frost
days |
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- |
- |
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18 days |
2014 |
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Most frost
days |
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40 days |
2016 |
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64 days |
2010 |
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Frostiest
day3 |
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15.6 hours |
1st
December |
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24 hours |
25th December 2010 |
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Frostiest
month3 |
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77.9
hours |
February |
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373 hours |
December 2010 |
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Thunder
days in a month4 |
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5 Days |
June |
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6 days |
July 2014 |
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Thunder
days in a year4 |
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16 Days |
2016 |
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23 days |
2014 |
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Updated on the
1st January 2017. |
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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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