December 2013
The River Teign just upstream of Fingle Bridge. Taken on a bright, mild and breezy late December day.
Another month of two halves: dry and settled until the 15th then wet and windy.
Summary for December 2013 Mean Max: 10.8ºC (+1.5ºC) Mean Min: 3.5ºC (+0.2ºC) Mean: 7.2ºC (+0.8ºC)       High Max: 13.1ºC 16th Low Max: 7.3ºC 1st High Min: 10.6ºC 21st Low Min: -2.4ºC 5th Mean Grass Min: 0.0ºC   Grass Min: -4.6ºC 5th       Rain Total (gauge): 118.6 mm (132%) Rain Total (tipping bucket): 112.5 mm (125%) Rain Days >0.2 mm: 19 Days   Rain Days >1.0 mm: 16 Days   Max 24 hrs: 23.2 mm 23rd  Days without any rain: 12         Air Frost: 5 Days   Grass Frost: 15 Days   Snow Falling: 0 Days   Snow (50%) @ 9am: 0 Days   Ice Days: 0 Days   Thunder Heard: 0 Days   Hail <5 mm: 0 Days   Hail >5 mm: 0 Days   Fog @ 9am: 0 Days         Total Monthly Sunshine: 84.2 Hours (144%) Most Sunshine in a Day: 7.3 Hours 29th Average Daily Sunshine: 2.7 Hours   Sunless Days: 8 Days   Cloudless Days: 1 Days   Total Possible Sunshine: 249.7 Hours   Percentage of Total Sun: 34%   Maximum UV Index: 1.0 6th Time of Max UV:   11:45       Mean Soil Temp @ 30 cm: 9.0ºC   Min Soil Temp @ 30 cm: 8.1ºC 29th Max Soil Temp @ 30 cm: 10.2ºC 17th Mean Soil Temp @ 100 cm: 11.1ºC   Min Soil Temp @ 100 cm: 10.5ºC 31st Max Soil Temp @ 100 cm: 11.5ºC 1st       Ave 10 Min Wind >39 mph: 0.00 Days   N: 5.04 Days   NE: 0.42 Days   E: 0.47 Days   SE: 2.28 Days   S: 11.66 Days   SW: 5.42 Days   W: 0.93 Days   NW: 2.53 Days   Calm: 2.24 Days   Wind Chill Low: -3.4ºC 5th Mean Wind: 4.6 mph   Max Gust: 48 mph 18th   31.00 Days   Mean Cloud Cover: 63%   Mean RH @ 9am: 94%   Rain >0.1mm/hour: 73.0 Hours   Frost Duration: 31.3 Hours   Air Frost in a Day: 11.5 Hours 5th       Mean Sea Temperature: 10.4ºC (+0.4ºC) Normal for Month: 10.0ºC   Max Sea Temperature: 11.0ºC 24th Min Sea Temperature: 10.1ºC 11th       Mean Pressure @ 9am: 1015.1 hPa (+0.5 hPa) Mean Pressure: 1014.3 hPa (-0.3 hPa) Max Pressure: 1035.1 hPa 5th Min Pressure: 973.6 hPa 24th Max Change in 24 hours: 39.2 hPa 23rd        Radiation Daily Mean: 2.49 MJ/m²   Max Daily Value: 4.80 MJ/m² 29th Min Daily Value: 0.25 MJ/m² 23rd  Number of Days with Data: 31 Days   1-Hour Maximum: 384 W/m² 6th Starting Time of the Hour:   11:45       Max Dewpoint: 12.7ºC 16th Min Dewpoint: -3.3ºC 5th Mean Dewpoint: 5.6ºC         Max Humidity: 100% 9th Min Humidity: 69% 27th Mean Humidity: 90%
Weather Data for Otter Valley, Devon. December 2013   Temp oC Grass Hum (%) Soil oC DP (oC) Wind (mph) Rain Air (hPa) W/m² UV Sun Frost Calm Wind Sea Observations   Min Max Min Min Max 30 100 Min Max Max Ave Run mm Min Max Max Max Hours Hours Hours Chill Temp 1 -1.6 7.3 -4.1 91 97 8.6 11.5 -2.4 6.1 5 0.8 19 0.0 1032 1035 71 0.5 0.0 8.5 10.0 -2.3 10.4 Cloudy all day 2 5.6 11.5 2.1 70 96 8.5 11.3 4.2 6.6 8 0.6 14 0.0 1032 1035 347 0.9 1.8 0.0 13.8 4.9 10.4 Sunny intervals all day 3 4.4 7.4 1.4 78 93 8.8 11.2 3.1 4.5 7 0.4 10 0.0 1029 1032 68 0.0 0.0 0.0 16.0 4.4 10.2 Cloudy all day 4 -0.1 10.1 -3.4 85 96 8.9 11.3 -0.8 8.1 13 1.0 24 0.0 1028 1035 190 0.7 0.2 0.0 14.0 -0.4 10.3 Brief sunny intervals all day 5 -2.4 11.2 -4.6 76 99 8.6 11.2 -3.3 9.1 25 3.3 78 2.5 1024 1035 313 0.9 3.3 11.5 2.3 -3.4 10.4 Sunny intervals all day 6 1.3 9.6 -2.3 85 99 8.5 11.2 0.4 7.9 15 0.8 19 0.0 1026 1032 384 1.0 4.7 0.0 14.3 0.8 10.3 Sunny intervals all day 7 4.1 10.4 0.8 84 99 8.5 11.1 3.1 8.7 12 1.1 25 0.0 1026 1030 346 0.8 4.3 0.0 14.0 3.5 10.4 Sunny intervals all day 8 2.2 11.7 0.4 84 99 8.7 11.1 1.6 10.2 14 1.2 28 0.0 1026 1028 334 0.8 1.9 0.0 10.5 2.1 10.3 Sunny intervals all day 9 0.2 11.1 -3.1 83 100 8.5 11.0 -0.6 9.2 15 2.0 49 0.0 1027 1030 306 0.8 6.1 0.0 4.0 -0.8 10.3 Sunny intervals all day 10 4.9 12.2 0.6 76 98 8.3 11.0 2.0 8.3 17 3.2 77 0.0 1028 1030 377 0.7 2.9 0.0 2.0 2.6 10.2 Sunny intervals all day 11 2.2 11.8 -0.4 84 99 8.5 10.9 1.1 9.4 14 3.4 81 0.0 1025 1030 267 0.8 6.1 0.0 1.0 0.4 10.1 Sunny intervals all day 12 6.7 12.1 2.6 91 98 8.7 10.9 5.9 10.9 17 4.2 100 0.0 1022 1025 205 0.7 0.5 0.0 0.0 6.1 10.1 Brief sunny intervals all day 13 6.3 12.4 2.1 92 98 9.2 10.9 5.6 12.0 20 5.2 126 4.6 1016 1022 122 0.6 0.0 0.0 2.8 5.7 10.1 Cloudy all day 14 1.2 12.6 -1.7 83 99 9.3 11.0 0.7 10.2 33 7.2 173 0.9 1017 1026 179 0.7 1.2 0.0 5.3 1.2 10.1 Sunny intervals am, rain pm 15 2.3 12.6 -0.6 92 100 9.4 11.1 1.6 12.4 26 7.1 172 12.0 1015 1022 40 0.0 0.0 0.0 5.5 2.0 10.2 Cloudy all day 16 8.2 13.1 7.3 87 98 10.0 11.1 7.7 12.7 23 6.2 150 7.4 1013 1019 93 0.6 0.0 0.0 4.5 8.1 10.4 Cloudy all day 17 5.1 8.3 3.4 89 98 10.2 11.2 4.5 7.8 9 0.7 18 4.4 1018 1025 333 0.7 2.8 0.0 11.0 4.9 10.4 Sunny intervals all day 18 3.3 11.3 0.9 88 99 10.0 11.3 2.4 10.9 48 10.9 262 12.0 990 1017 27 0.0 0.0 0.0 5.0 3.0 10.4 Cloudy all day 19 1.5 8.9 -1.2 85 98 9.9 11.3 0.8 7.8 29 2.2 53 4.4 993 1009 249 0.6 2.4 0.0 7.3 1.4 10.2 Sunny intervals all day 20 1.0 11.4 -2.7 84 99 9.2 11.3 0.5 9.8 34 5.8 152 0.9 1010 1023 238 0.6 3.2 0.0 7.8 0.7 10.1 Sunny intervals all day 21 10.6 12.2 5.0 82 98 9.3 11.2 5.6 11.7 33 9.1 219 9.9 1007 1017 73 0.6 0.0 0.0 0.0 6.4 10.5 Cloudy all day 22 5.8 10.6 0.3 75 95 9.6 11.1 2.2 8.2 34 5.1 123 1.2 1008 1014 358 0.7 5.5 0.0 0.8 2.6 10.7 Sunshine and showers all day 23 6.1 12.3 3.4 87 97 9.4 11.2 3.6 11.7 45 14.6 350 23.2 974 1013 15 0.0 0.0 0.0 0.0 3.5 10.8 Wet and windy all day 24 6.8 12.3 -1.0 72 96 9.7 11.0 2.5 11.5 44 7.8 172 7.1 974 981 306 0.7 6.8 0.0 0.0 3.2 11.0 Sunny intervals all day 25 2.2 7.3 -0.9 84 97 9.3 11.1 1.4 6.0 17 1.8 43 5.1 979 986 298 0.6 2.2 0.0 8.0 0.3 10.9 Sunshine & showers all day 26 -0.3 10.4 -3.0 77 100 8.8 11.1 -0.9 7.6 31 2.3 56 1.6 986 998 294 0.7 6.0 2.3 11.3 -0.6 10.5 Sunny am, hazy pm 27 7.1 12.1 0.7 69 98 8.6 10.9 3.0 11.7 39 10.8 260 2.8 983 992 273 0.8 4.6 0.0 0.0 4.1 10.7 Sunny intervals all day 28 1.1 7.3 -3.4 81 97 8.6 10.9 -0.5 6.0 9 0.7 18 0.0 990 1005 206 0.6 2.0 0.0 13.5 -0.7 10.6 Sunny intervals all day 29 -0.9 10.1 -3.9 79 99 8.1 10.8 -1.6 8.5 25 3.0 73 0.5 1005 1018 306 0.7 7.3 9.0 8.0 -1.8 10.5 Sunny all day 30 9.3 11.2 0.5 77 97 8.1 10.6 3.5 10.3 43 10.9 263 12.2 1002 1015 348 0.7 5.2 0.0 3.8 4.2 10.4 Rain early am then sunshine 31 5.5 10.8 4.2 75 99 8.6 10.5 3.7 9.3 34 8.6 208 4.8 998 1010 294 0.6 3.3 0.0 0.3 4.2 10.4 Sunny intervals all day 3.5 10.8 0.0 82 98 9.0 11.1 2.0 9.2 24 4.6 3408 112 1010 1019 234 0.6 84.2 31.3 196 2.3 10.4
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