May 2013
Roe deer amongst the bluebells in a Devonshire woodland. Taken on a warm and sunny day in May 2013.
A fairly sunny month with below average rainfall and temperatures.
Summary for  May 2013 Mean Max: 16.6ºC (-0.0ºC) Mean Min: 6.0ºC (-2.2ºC) Mean: 11.3ºC (-1.1ºC)   High Max: 23.7ºC 31st Low Max: 9.9ºC 14th High Min: 11.1ºC 5th Low Min: 0.9ºC 1st Mean Grass Min: 3.7ºC Grass Min: -0.5ºC 1st   Rain Total (gauge): 51.3 mm (92%) Rain Total (tipping bucket): 50.4 mm (90%) Rain Days >0.2 mm: 12 Days Rain Days >1.0 mm: 9 Days Max 24 hrs: 12.0 mm 14th Days without any rain: 19   Air Frost: 0 Days Grass Frost: 1 Day 1st Snow Falling: 0 Days Snow (50%) @ 9am: 0 Days Ice Days: 0 Days Thunder Heard: 1 Day 17th Hail <5 mm: 0 Days Hail >5 mm: 0 Days Fog @ 9am: 0 Days   Total Monthly Sunshine: 213 Hours (111%) Most Sunshine in a Day: 14.8 Hours 26th Average Daily Sunshine: 6.9 Hours Sunless Days: 1 Day 28th Cloudless Days: 4 Days Total Possible Sunshine: 481.5 Hours Percentage of Total Sun: 44% Maximum UV Index: 7.5 22nd  Time of Max UV: 14:00   Mean Soil Temp @ 30 cm: 13.4ºC Min Soil Temp @ 30 cm: 12.1ºC 1st Max Soil Temp @ 30 cm: 14.4ºC 22nd  Mean Soil Temp @ 100 cm: 12.7ºC Min Soil Temp @ 100 cm: 11.4ºC 1st Max Soil Temp @ 100 cm: 13.4ºC 28th   Ave 10 Min Wind >39 mph: 0.00 Days N: 10.21 Days NE: 0.47 Days E: 1.00 Days SE: 1.14 Days S: 5.04 Days SW: 3.97 Days W: 1.42 Days NW: 6.86 Days Calm: 0.89 Days Wind Chill Low: 0.4ºC 1st Mean Wind: 3.8 mph Max Gust: 37 mph 9th   31.00 Days Mean Cloud Cover: 64% Mean RH @ 9am: 85% Rain >0.1mm/hour: 34.8 Hours Frost Duration: 0.0 Hours Air Frost in a Day: 0.0 Hours 1st   Mean Sea Temperature: 10.7ºC (-2.2ºC) Normal for Month: 12.9ºC Max Sea Temperature: 12.4ºC 29th Min Sea Temperature: 9.4ºC 1st   Mean Pressure @ 9am: 1013.3 hPa (-1.3 hPa) Mean Pressure: 1012.5 hPa (-2.1 hPa) Max Pressure: 1025.4 hPa 1st Min Pressure: 982.4 hPa 15th Max Change in 24 hours: 29.3 hPa 14th   Radiation Daily Mean: 18.10 MJ/m² Max Daily Value: 29.50 MJ/m² 16th Min Daily Value: 5.66 MJ/m² 14th Number of Days with Data: 31 Days 1-Hour Maximum: 1160 W/m² 23rd  Starting Time of the Hour: 14:00   Max Dewpoint: 13.8ºC 30th Min Dewpoint: -0.1ºC 1st Mean Dewpoint: 7.2ºC   Max Humidity: 99% 18th Min Humidity: 37% 2nd  Mean Humidity: 77%
Weather Data for Otter Valley, Devon. May 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 0.9 18.3 -0.5 39 94 12.1 11.4 -0.1 5.3 16 3.1 73 0.0 1022 1025 920 5.3 13.9 0.0 1.5 0.4 9.4 Sunny all day 2 4.6 19.9 2.6 37 91 12.4 11.5 3.1 7.1 15 2.5 60 0.0 1022 1024 988 5.8 12.2 0.0 3.0 3.6 10.2 Sunny intervals all day 3 3.6 16.7 1.7 55 97 12.6 11.6 2.4 9.5 13 2.8 68 0.0 1020 1023 791 6.1 5.8 0.0 1.3 2.3 9.6 Sunny intervals all day 4 6.9 18.3 3.4 45 94 12.8 11.7 4.9 10.2 23 4.3 104 0.0 1017 1020 947 5.7 9.1 0.0 2.0 6.8 10.0 Cloudy am, sunny pm 5 11.1 18.7 3.4 61 88 13.6 11.9 7.6 11.7 17 3.5 84 0.0 1021 1023 933 6.0 11.2 0.0 4.8 10.9 10.5 Sunny intervals am, sunny pm 6 3.7 17.8 2.4 66 98 14.1 12.2 2.7 12.4 13 2.0 49 0.0 1018 1022 959 5.9 11.1 0.0 10.8 3.4 12.3 Misty am, sunny pm 7 4.7 18.4 10.4 53 97 14.1 12.3 4.0 10.0 17 2.9 70 0.0 1010 1018 920 5.4 11.1 0.0 7.0 4.5 10.3 Sunny intervals all day 8 10.9 15.2 3.0 64 97 14.1 12.7 5.0 12.3 28 6.6 158 10.1 1003 1010 447 4.9 2.3 0.0 0.0 9.6 10.5 Cloudy am, sunny intervals pm 9 6.2 13.7 3.4 69 93 13.5 12.8 4.6 9.4 37 9.6 229 1.9 1005 1011 708 6.0 3.4 0.0 1.8 5.5 10.6 Sunny intervals all day 10 9.4 15.7 2.8 65 92 13.4 12.8 7.0 11.5 21 5.3 128 0.8 1006 1014 464 3.7 1.1 0.0 0.5 9.1 10.6 Sunny ints all day, showers pm 11 5.8 14.4 1.7 62 98 13.2 12.9 5.0 10.2 22 4.1 99 3.2 1011 1014 758 6.4 1.7 0.0 2.5 5.2 10.5 Brief sunny intervals all day 12 4.0 14.0 5.0 74 98 13.1 12.7 3.0 11.0 21 3.1 76 0.0 1014 1018 478 2.8 1.9 0.0 5.3 3.9 10.3 Cloudy with light drizzle 13 9.4 14.7 4.0 56 88 13.2 12.9 4.7 10.4 20 5.0 120 0.2 1012 1016 882 6.7 2.4 0.0 0.0 9.0 10.4 Sunny intervals all day 14 6.5 9.9 2.0 73 96 12.7 12.8 4.9 8.9 30 4.2 101 12.0 983 1013 256 2.3 0.2 0.0 2.5 4.5 10.2 Rain all day. Windy pm. 15 4.4 13.2 0.4 66 97 12.5 12.7 3.3 8.4 22 5.2 125 3.2 982 1001 806 5.4 5.3 0.0 0.0 1.7 10.4 Sunny intervals all day 16 2.3 15.1 7.8 58 98 12.9 12.7 1.3 9.7 18 2.3 54 0.0 999 1002 992 5.8 14.6 0.0 7.5 2.1 11.3 Sunny all day 17 1.3 17.0 0.2 58 98 13.0 12.7 0.6 10.2 11 1.4 34 1.7 999 1009 1134 5.8 6.8 0.0 5.5 1.2 10.9 Sunny am, showers pm 18 3.6 19.2 2.5 40 99 13.1 12.6 2.2 9.7 16 2.6 62 0.0 1007 1010 986 5.4 13.5 0.0 4.3 3.1 10.7 Sunny all day 19 7.4 18.4 5.6 59 94 13.6 12.7 5.8 12.0 14 2.1 51 0.0 1008 1014 501 3.3 2.4 0.0 1.0 7.3 10.9 Cloudy am, hazy sun pm 20 7.3 17.7 4.7 70 96 13.8 12.9 6.1 12.8 14 3.3 86 0.0 1013 1015 590 5.5 4.8 0.0 0.3 6.1 10.7 Sunny intervals all day 21 10.6 17.2 8.1 74 96 14.0 13.0 8.8 12.8 16 3.1 74 0.0 1015 1020 721 7.1 2.3 0.0 4.8 10.4 10.8 Cloudy am, sunny intervals pm 22 6.7 18.1 5.1 51 97 14.1 13.0 3.6 9.9 24 4.4 107 0.0 1019 1021 920 7.5 7.4 0.0 2.5 6.3 10.6 Sunny intervals all day 23 6.5 14.3 3.4 48 92 14.0 13.0 1.5 6.0 29 6.4 153 0.0 1015 1020 1160 6.4 8.7 0.0 0.3 5.6 10.4 Sunny intervals all day 24 6.3 14.2 3.2 54 86 13.8 13.2 1.7 7.2 25 5.8 127 0.8 1011 1016 804 7.5 4.5 0.0 0.0 4.8 10.3 Sunny intervals all day 25 3.4 16.9 1.0 55 95 13.6 13.2 1.9 9.0 18 3.6 86 0.0 1015 1023 1084 6.4 10.9 0.0 2.3 3.1 11.1 Sunny intervals all day 26 2.2 17.9 0.8 46 97 13.7 13.2 1.1 8.9 18 3.4 81 0.0 1016 1023 973 6.3 14.8 0.0 4.3 0.8 11.1 Sunny all day 27 2.8 14.3 0.8 74 98 14.0 13.3 1.7 9.9 30 6.2 148 2.5 1002 1016 896 7.2 5.2 0.0 8.0 2.4 11.1 Sunny ints am, cloudy pm. 28 7.6 12.3 7.0 77 97 13.8 13.4 6.8 9.8 19 2.8 68 12.0 1000 1002 311 2.2 0.0 0.0 2.3 6.5 11.3 Bright am, cloudy pm. 29 8.1 16.9 8.0 63 96 13.8 13.4 7.0 11.8 15 1.8 43 2.1 1001 1009 860 7.3 3.1 0.0 7.3 7.9 12.4 Sunny intervals all day 30 10.1 21.9 5.8 58 98 14.4 13.4 9.2 13.8 19 3.1 75 0.0 1009 1015 1050 7.0 6.8 0.0 6.8 9.8 11.2 Sunny intervals all day 31 7.8 23.7 5.9 50 98 14.6 13.3 7.0 13.8 18 2.6 64 0.0 1015 1021 1002 7.2 13.9 0.0 6.3 7.6 12.0 Sunny intervals all day 6.0 16.6 3.7 59 95 13.4 12.7 4.1 10.2 20 3.8 2854 50 1009 1016 814 5.7 213 0.0 100 5.3 10.7
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