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Otter Valley Weather Extremes (2005 - 2015) |
Otter Valley
weather extremes for 2015 and station records |
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2015 |
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Station
Record |
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Temperature highs |
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25.3°C |
8th August |
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30.8°C |
19th July 2006 |
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Temperature lows |
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-3.9°C |
23rd January |
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-9.8°C |
26th December 2010 |
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Temperature lowest high |
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5.6°C |
2nd February |
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-0.9°C |
25th December 2010 |
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Temperature highest low |
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19.2°C |
1st July |
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19.2°C |
1st July 2015 |
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Warmest monthly
mean |
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16.7°C |
July |
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20.1°C |
July 2006 |
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Coldest monthly mean |
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6.3°C |
February |
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0.7°C |
December 2010 |
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Warmest annual
mean |
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11.6°C |
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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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+5.0°C |
December |
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+5.0°C |
December 2015 |
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Lowest
monthly anomaly |
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-1.0°C |
September |
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-5.6°C |
December 2010 |
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Grass temp lows |
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-6.8°C |
2nd February |
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-10.8°C |
7th January 2010 |
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Rainfall in 15
minutes |
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- mm |
- |
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10.4 mm |
30th
October 2008 |
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Rainfall in 1 hour |
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- mm |
- |
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24.1 mm |
12th June 2006 |
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Rainfall in 24 hours |
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36.8 mm |
23rd
August |
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70.8 mm |
30th October 2008 |
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Rainfall in 1 month |
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78.1 mm |
May |
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188.9 mm |
November 2009 |
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Rainfall in 1 year |
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- mm |
- |
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1370 mm |
2012 |
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Driest Month |
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14.4 mm |
April |
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9.8 mm |
September 2014 |
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Driest Year |
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776 mm |
2015 |
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712 mm |
2011 |
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Max Sunshine in 1 day |
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15.4 Hours |
30th June |
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15.8 hours |
25th June 2010 |
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Max Sunshine in 1 month |
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256.8 Hours |
June |
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328.2 hours |
July 2013 |
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Max Sunshine in 1 year |
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1831 Hours |
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2019 hours |
2010 |
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Dullest month |
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49.1 Hours |
November |
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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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9.3 |
16th July |
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10.0 |
14th July 2014 |
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Solar irradiance high |
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1320 W/m² |
4th May |
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1320 W/m² |
4th May 2015 |
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Solar energy high |
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30.0 MJ/m² |
15th June |
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33.1 MJ/m² |
19th June 2012 |
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Wind high |
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50 mph |
30th December |
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58 mph |
10th March 2008 |
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Windiest day |
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390 miles |
26th December |
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405 miles |
6th February 2016 |
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Windiest month |
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6632 miles |
December |
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6632 miles |
December 2015 |
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Calmest day |
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12 miles |
2nd October |
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1 mile |
11th December 2008 |
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Calmest month |
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2246 miles |
September |
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1293 miles |
September 2014 |
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Pressure highs |
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1042.2 hPa |
18th February |
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1042.6 hPa |
29th December 2014 |
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Pressure lows |
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976.1 hPa |
30th January |
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961.1 hPa |
10th March 2008 |
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Dewpoint
high |
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20.6°C |
20th July |
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20.9°C |
19th
August
2012 |
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Dewpoint
low |
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-4.9°C |
23rd
January |
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-14.3°C |
26th
December 2010 |
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Relative
humidity low |
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39% |
7th June |
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27% |
9th July 2013 |
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30 cm soil temp highs |
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19.6°C |
16th July |
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21.3°C |
27th July 2014 |
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30 cm soil temp lows |
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5.2°C |
7th February |
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0.3°C |
8th January 2009 |
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100 cm soil temp highs |
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18.3°C |
16th July |
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19.6°C |
30th July 2014 |
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100 cm soil temp lows |
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8.4°C |
11th February |
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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 |
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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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18.3°C |
8th
August |
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22.5°C |
10th
August 2003 |
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Sea
surface temp lows |
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7.0°C |
8th
February |
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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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23 days |
2015 |
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64 days |
2010 |
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Frostiest
day3 |
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14.3 hours |
2nd
February |
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24 hours |
25th December 2010 |
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Frostiest
month3 |
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109.5
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 |
July |
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6 days |
July 2014 |
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Thunder
days in a year4 |
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11 Days |
2015 |
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23 days |
2014 |
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Updated on the
1st January 2016.
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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