April 2015
Cherry blossom in my garden in the gloriously sunny month of April 2015.

A very dry and sunny month with above average temperatures by day but many cold, clear nights too.
Summary for  April 2015
Mean Max: 16.4ºC (+3.2ºC)
Mean Min: 4.6ºC (-0.4ºC)
Mean (min+max ÷ 2): 10.5ºC (+1.4ºC)
Mean (integrated):  9.9ºC  
High Max: 23.4ºC 15th
Low Max: 12.3ºC 1st
High Min: 9.6ºC 25th
Low Min: 0.2ºC 6th
Mean Grass Min: 2.0ºC  
Grass Min: -2.0ºC 27th
Days  >15°C 21 Days  
Days  >10°C 30 Days  
Days  >5°C 30 Days  
Days  <-5°C 0 Days  
Rain Total (gauge): 14.4 mm (24%)
Rain Total (tipping bucket): 13.8 mm (23%)
Rain Days >0.2 mm: 8 Days  
Rain Days >1.0 mm: 5 Days  
Max 24 hrs: 4.8 mm 25th
Days without any rain: 22  
Air Frost: 0 Days  
Grass Frost: 12 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: 1 Days  
Total Monthly Sunshine: 247.6 Hours (149%)
Most Sunshine in a Day: 13.5 Hours 22nd 
Average Daily Sunshine: 8.3 Hours  
Sunless Days: 0 Days  
Cloudless Days: 9 Days  
Total Possible Sunshine: 414.6 Hours  
Percentage of Total Sun: 60%  
Maximum UV Index: 5.9 28th
Time of Max UV:   13:15
Average Max UV: 5.1  
Mean Soil Temp @ 30 cm: 12.4ºC  
Min Soil Temp @ 30 cm: 10.2ºC 1st
Max Soil Temp @ 30 cm: 13.8ºC 26th
Mean Soil Temp @ 100 cm: 12.2ºC  
Min Soil Temp @ 100 cm: 10.6ºC 1st
Max Soil Temp @ 100 cm: 13.4ºC 27th
Ave 10 Min Wind >39 mph: 0.00 Days  
N: 5.19 Days  
NE: 2.00 Days  
E: 2.29 Days  
SE: 2.55 Days  
S: 5.20 Days  
SW: 1.79 Days  
W: 1.90 Days  
NW: 4.74 Days  
Calm: 4.34 Days  
Wind Chill Low: -0.7ºC 12th
Mean Wind: 3.7 mph  
Max Gust: 26 mph 18th
Mean Cloud Cover: 57%  
Mean RH @ 9am: 91%  
Rain >0.1mm/hour: 4.5 Hours  
Frost Duration: 0.0 Hours  
Air Frost in a Day: 0.0 Hours  
Mean Sea Temperature: 10.6ºC (+1.9ºC)
Normal for Month: 8.7ºC  
Max Sea Temperature: 12.1ºC 15th
Min Sea Temperature: 8.9ºC 1st
Mean Pressure @ 9am: 1026.1 hPa  
Mean Pressure: 1021.2 hPa  
Max Pressure: 1037.4 hPa 7th
Min Pressure: 1004.2 hPa 25th
Max Change in 24 hours: 14.4 hPa 11th
Radiation Daily Mean: 18.12 MJ/m²  
Max Daily Value: 25.82 MJ/m² 22nd 
Min Daily Value: 5.96 MJ/m² 2nd 
Number of Days with Data: 30 Days  
1-Hour Maximum: 1185 W/m² 28th
Starting Time of the Hour:   13:00
Max Dewpoint: 14.8ºC 16th
Min Dewpoint: -1.0ºC 27th
Mean Dewpoint: 6.6ºC  
Max Humidity: 99% 8th
Min Humidity: 41% 22nd 
Mean Humidity: 78%  
Weather Data for Otter Valley, Devon. April 2015
  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 3.1 12.3 -0.9 55 93 10.2 10.6 1.0 7.3 23 5.2 125 0.4 1021 1029 962 4.9 4.2 0.0 1.3 2.8 8.9 Sunny intervals all day
2 8.3 13.7 9.2 83 94 10.3 10.8 7.2 11.1 19 4.3 104 2.0 1020 1024 548 2.7 0.4 0.0 1.3 7.1 9.0 Brief sunny ints all day
3 9.2 13.6 1.1 80 98 10.7 10.9 7.1 10.8 25 4.7 113 1.6 1014 1022 901 5.8 0.9 0.0 0.1 7.0 9.1 Brief sunny ints all day
4 5.1 14.7 1.8 65 94 10.9 10.9 3.6 8.5 19 4.8 116 0.0 1018 1026 900 5.6 4.6 0.0 1.7 2.7 9.2 Sunny intervals all day
5 5.4 15.3 -1.0 67 94 10.9 11.1 3.8 10.1 13 2.4 57 0.0 1026 1028 1064 5.2 4.7 0.0 0.1 5.1 9.4 Sunny intervals all day
6 0.2 21.0 3.8 47 98 10.7 11.0 -0.6 12.0 15 2.3 56 0.0 1028 1033 826 5.3 12.5 0.0 3.7 -0.6 9.7 Sunny all day
7 6.1 15.4 -0.1 68 96 11.4 11.3 4.7 10.2 15 2.9 70 0.0 1033 1037 894 4.8 8.0 0.0 5.4 5.4 9.9 Cloudy am, sunny pm
8 1.6 16.7 3.4 49 99 11.2 11.2 0.8 8.6 14 2.7 64 0.0 1029 1035 859 4.9 12.4 0.0 5.9 0.9 10.0 Cloudy am, sunny ints pm
9 1.1 16.3 -0.9 64 98 11.5 11.5 0.1 10.5 14 3.2 77 0.0 1023 1029 831 5.1 12.6 0.0 2.0 0.2 10.1 Sunny all day
10 3.4 16.6 5.7 67 98 11.6 11.6 2.5 11.8 19 4.3 103 0.0 1013 1023 819 4.6 9.9 0.0 4.7 1.9 10.2 Sunny intervals all day
11 8.1 14.8 -1.2 42 93 11.9 11.6 0.8 9.9 24 6.3 151 1.8 1012 1026 989 5.0 12.1 0.0 1.0 5.2 10.3 Sunny intervals all day
12 1.1 17.4 -0.1 61 99 11.9 11.8 -0.2 11.0 24 5.6 133 0.0 1025 1027 930 5.5 7.4 0.0 8.2 -0.7 10.3 Sunny am, cloudy pm
13 9.3 16.1 6.0 75 95 12.3 11.9 7.3 12.4 16 3.8 90 0.0 1027 1031 933 5.8 5.5 0.0 7.8 8.2 10.8 Rain am, sunny ints pm
14 5.9 15.9 1.4 73 98 12.8 12.1 5.3 12.2 13 3.7 90 0.0 1022 1029 835 4.6 9.2 0.0 2.8 5.4 11.2 Sunny intervals all day
15 3.6 23.4 6.2 53 99 12.9 12.2 2.8 14.3 13 2.5 61 0.0 1014 1022 819 4.6 13.1 0.0 8.2 2.6 12.1 Sunny all day
16 8.3 21.6 4.5 59 95 13.4 12.4 7.0 14.8 13 3.3 80 0.0 1011 1015 977 4.9 13.0 0.0 2.0 7.2 11.3 Sunny all day
17 6.7 16.4 3.7 63 95 13.5 12.6 5.6 10.4 13 2.0 49 0.0 1012 1021 886 4.7 2.9 0.0 5.8 6.1 10.8 Sunny am, cloudy pm
18 6.1 15.6 2.6 53 87 13.3 12.6 3.2 9.1 26 5.6 134 0.0 1021 1025 850 4.2 13.3 0.0 1.8 3.1 10.7 Sunny all day
19 4.4 16.1 -1.0 50 88 13.2 12.8 0.9 6.7 17 4.4 106 0.0 1022 1025 899 5.0 13.3 0.0 0.5 1.4 10.6 Sunny all day
20 1.2 19.9 -0.6 46 96 13.0 12.8 -0.1 10.2 12 2.4 57 0.0 1023 1030 857 4.7 13.4 0.0 4.3 -0.3 10.8 Sunny all day
21 3.1 20.5 1.1 42 97 13.2 12.9 2.0 9.5 16 2.6 63 0.0 1030 1033 870 5.2 13.5 0.0 2.2 1.6 11.2 Sunny all day
22 5.3 18.9 1.2 41 93 13.4 12.9 3.4 10.0 16 3.6 87 0.0 1024 1031 875 5.2 13.5 0.0 2.8 5.1 11.1 Sunny all day
23 3.3 14.8 1.1 67 98 13.5 13.2 2.2 9.6 16 3.1 75 0.0 1016 1025 1151 5.3 8.2 0.0 3.3 2.4 11.5 Brief sunny ints all day
24 2.7 15.4 11.3 79 97 13.5 13.3 1.6 12.5 21 3.9 93 0.0 1008 1016 759 4.6 1.3 0.0 7.9 2.4 11.3 Sunny intervals all day
25 9.6 15.2 6.7 80 99 13.6 13.3 8.9 12.8 15 5.1 122 4.8 1004 1008 601 5.2 1.2 0.0 0.3 8.4 11.7 Sunny ints am, rain pm
26 8.1 13.4 3.3 69 98 13.8 13.3 5.9 11.3 17 2.8 67 0.4 1005 1009 645 5.7 1.5 0.0 5.1 6.3 11.6 Brief sunny ints all day
27 0.4 13.1 -2.0 56 95 13.6 13.4 -1.0 7.2 16 3.2 77 0.0 1009 1013 1052 5.5 8.1 0.0 3.7 0.0 11.3 Brief sunny ints all day
28 0.9 14.7 -1.5 42 98 12.9 13.3 0.0 5.9 18 3.5 84 0.6 1014 1020 1185 5.9 8.2 0.0 7.9 -0.2 11.2 Brief sunny ints all day
29 5.7 15.8 -1.4 43 94 13.0 13.3 2.0 8.1 19 4.3 107 2.2 1012 1018 1082 5.3 7.2 0.0 1.6 3.8 11.3 Brief sunny ints all day
30 0.5 16.9 -2.0 42 98 12.9 13.2 -0.6 7.5 14 2.5 57 0.0 1010 1014 1112 5.8 11.5 0.0 6.8 0.2 11.4 Sunny ints am, cloudy pm
4.6 16.4 2.0 59 96 12.4 12.2 2.9 10.2 17 3.7 2666 14 1018 1024 897 5.1 247.6 0.0 110 3.4 10.6  
UV Light | Month So Far | Year So Far | Recording Data | Time-Lapse Videos | World Weather | Met Office 5-Day | Humidity Calculation | Links