April 2019
A view looking west towards Sidmouth showing a thick foggy haze with just the cliff tops poking out into the clearer air

A typical April mix of warmth, cold, rain, dry and sun. Overall though it was warmer, wetter and sunnier than average. Warmest April since 2018 (11.0C), wettest since 2018 (82 mm), sunniest since 2015 (248 hours).

Summary for April 2019
Mean Max: 15.0C (+1.8C)
Mean Min: 5.5C (+0.5C)
Mean: 10.2C (+1.1C)
High Max: 24.9C 20th
Low Max: 9.2C 3rd 
High Min: 11.8C 23rd 
Low Min: -1.8C 3rd 
Mean Grass Min: 2.7C  
Grass Min: -3.3C 3rd 
Days  >15C 10 Days  
Days >10C 26 Days  
Nights  >10C 3 Days  
Nights  >5C 18 Days  
Rain Total (gauge): 66.3 mm (109%)
Rain Total (tipping bucket): 64.5 mm (106%)
Rain Days >0.2 mm: 13 Days  
Rain Days >1.0 mm: 11 Days  
Max 24 hrs: 25.6 mm 5th
Days without any rain: 17  
Air Frost: 2 Days  
Grass Frost: 5 Days  
Snow Falling: 0 Days  
Snow (50%) @ 9am: 0 Days  
Ice Days: 0 Days  
Thunder Heard: 0 Days  
Hail <5 mm: 2 Days  
Hail >5 mm: 0 Days  
Fog @ 9am: 1 Day  
Total Monthly Sunshine: 220.0 Hours (114%)
Most Sunshine in a Day: 13.5 Hours 21st
Average Daily Sunshine: 7.3 Hours  
Sunless Days: 1 Days  
Cloudless Days: 5 Days  
Total Possible Sunshine: 414.6 Hours  
Percentage of Total Sun: 53%  
Average Sunny Interval: 22.4 mins
Maximum UV Index: 5.5 30th
Mean Soil Temp @ 10 cm: 10.9C  
Min Soil Temp @ 10 cm: 9.0C 4th
Max Soil Temp @ 10 cm: 13.4C 23rd 
Mean Soil Temp @ 30 cm: 10.7C  
Min Soil Temp @ 30 cm: 9.3C 6th
Max Soil Temp @ 30 cm: 12.8C 24th
Mean Soil Temp @ 100 cm: 10.3C  
Min Soil Temp @ 100 cm: 10.0C 1st
Max Soil Temp @ 100 cm: 11.1C 24th
Ave 10 Min Wind >39 mph: 0.00 Days  
N: 4.58 Days 15%
NE: 2.42 Days 8%
E: 4.17 Days 13%
SE: 3.77 Days 12%
S: 4.02 Days 13%
SW: 2.49 Days 8%
W: 1.07 Days 3%
NW: 3.32 Days 11%
Calm: 4.14 Days 17%
Wind Chill Low: -3.1C 3rd 
Mean Wind: 3.8 mph  
Max Gust: 36 mph 27th
Mean Cloud Cover: 50%  
Mean RH @ 9am: 85%  
Rain >0.1mm/hour: 22.3 Hours  
Frost Duration: 3.3 Hours  
Air Frost in a Day: 3.3 Hours 12th
Mean Sea Temperature: 11.2C (+0.9C)
Normal for Month: 10.3C  
Max Sea Temperature: 15.3C 20th
Min Sea Temperature: 10.2C 3rd 
Mean Pressure @ 9am: 1012.8 hPa  
Mean Pressure: 1012.7 hPa  
Max Pressure: 1030.5 hPa 20th
Min Pressure: 987.7 hPa 4th
Max Change in 24 hours: 13.3 hPa 22nd 
Radiation Daily Mean: 16.80 MJ/m  
Max Daily Value: 25.91 MJ/m 21st
Min Daily Value: 4.18 MJ/m 5th
Number of Days with Data: 30 Days  
1-Hour Maximum: 985 W/m 27th
Starting Time of the Hour:   13:00
Max Dewpoint: 13.2C 23rd 
Min Dewpoint: -2.5C 3rd 
Mean Dewpoint: 6.4C  
Max Humidity: 98% 17th
Min Humidity: 35% 20th
Mean Humidity: 78%  
 
Weather Data for Otter Valley, Devon. April 2019
  Temp oC Grass Hum (%) Soil oC (cm) Soil DP (oC) Wind (mph) Rain Air (hPa) W/m UV Sun Frost Sea Observations
  Min Max Min Min Max 10 30 100 (cb) Min Max Max Ave Run mm Min Max Max Max Hours Hours Temp
1 1.4 14.6 -1.1 66 94 10.1 9.9 10.0 5.0 -0.1 8.9 16 3.6 86 0.0 1014 1024 642 3.6 12.3 0.0 10.7 Sunny all day
2 2.7 13.3 0.6 53 96 10.0 10.0 10.0 5.5 1.2 6.5 25 3.7 89 0.7 1003 1014 886 3.4 4.7 0.0 10.8 Sunshine and showers
3 -1.8 9.2 -3.3 61 96 9.2 9.7 10.0 7.4 -2.5 5.7 26 2.2 54 1.1 997 1003 749 3.1 6.6 0.0 10.5 Sunshine and showers
4 3.9 9.4 0.6 77 95 9.0 9.4 10.0 7.9 0.6 6.7 30 6.9 166 4.3 988 997 416 2.5 0.7 0.0 10.4 Mostly cloudy
5 6.2 9.8 3.9 83 96 9.1 9.4 10.0 8.0 4.4 8.3 31 6.2 148 25.6 990 1000 233 1.6 0.0 0.0 10.3 Rain all day
6 8.1 14.8 5.0 59 90 9.3 9.3 10.0 8.3 5.5 9.0 19 5.0 121 3.4 1000 1004 685 3.7 7.5 0.0 10.4 Sunny intervals all day
7 7.9 14.3 3.3 69 89 10.0 9.5 10.0 7.1 5.7 9.9 16 4.0 96 0.0 1003 1009 753 3.8 7.4 0.0 10.5 Cloudy am, sunny pm
8 3.6 14.7 1.1 68 97 10.2 10.0 10.0 5.5 2.6 10.8 10 1.9 45 0.0 1008 1011 858 4.1 6.9 0.0 10.9 Sunny intervals all day
9 4.1 15.3 1.7 69 97 10.4 10.0 10.0 5.8 3.2 10.3 17 3.1 73 2.0 1011 1015 679 3.5 5.1 0.0 11.0 Sunny intervals all day
10 5.1 13.7 1.1 61 95 10.5 10.3 10.0 6.7 3.2 7.7 17 4.2 101 1.2 1015 1021 861 3.8 7.9 0.0 10.8 Cloudy am, sunny pm
11 0.1 12.8 -2.2 61 95 9.9 10.2 10.0 6.7 -1.3 6.4 18 3.0 71 0.0 1021 1026 767 3.7 12.9 0.0 11.1 Sunny all day
12 -0.6 12.2 -2.8 59 97 9.7 9.8 10.0 6.7 -1.6 5.3 18 2.3 55 0.0 1024 1026 756 3.6 9.4 3.3 11.0 Cloudy early am, sunny pm
13 4.2 11.5 1.1 57 83 9.8 9.9 10.0 7.0 1.0 5.4 21 4.2 101 0.0 1024 1026 738 4.4 7.3 0.0 10.8 Sunny intervals all day
14 4.3 9.9 2.8 60 79 9.4 9.7 10.0 7.0 0.5 3.5 21 5.1 122 0.0 1021 1024 800 4.2 3.3 0.0 10.6 Sunny intervals all day
15 7.7 11.9 6.1 60 76 9.5 9.4 10.0 7.0 2.1 6.5 26 8.0 191 0.0 1012 1022 679 4.0 6.4 0.0 10.4 Sunny intervals all day
16 8.4 13.6 3.3 73 96 10.3 10.0 10.0 7.0 5.9 10.8 18 2.3 56 5.8 1012 1018 674 3.1 4.5 0.0 10.7 Cloudy am, sunny int pm
17 1.6 16.8 -0.6 65 98 10.4 10.2 10.0 6.4 0.8 11.6 15 1.6 38 0.0 1017 1019 722 4.2 7.8 0.0 10.9 Misty am, sunny pm
18 11.3 20.3 7.2 56 84 11.4 10.7 10.0 7.3 7.4 13.0 16 3.8 91 0.0 1018 1023 670 3.9 10.1 0.0 11.1 Sunny intervals all day
19 6.4 24.0 3.9 41 94 11.9 11.1 10.0 8.4 4.9 12.8 9 1.9 46 0.0 1023 1029 774 4.3 12.9 0.0 12.2 Sunny all day
20 5.9 24.9 3.3 35 95 12.4 11.7 10.5 9.5 4.6 12.1 13 2.3 54 0.0 1026 1031 771 4.6 13.5 0.0 12.4 Sunny all day
21 5.1 23.8 3.3 36 95 12.7 11.9 10.6 10.0 3.8 11.0 14 2.7 65 0.0 1014 1026 764 4.8 13.5 0.0 13.0 Sunny all day
22 5.4 18.5 2.8 59 93 12.6 12.0 10.6 10.0 3.7 12.8 14 1.3 32 0.0 1000 1014 757 3.9 11.1 0.0 12.1 Cloudy early then sunny
23 11.8 20.2 10.0 59 92 13.4 12.5 10.7 10.0 9.7 13.2 13 1.5 37 0.0 994 1001 636 3.2 6.2 0.0 12.2 Sunny am, cloudy pm
24 10.2 13.6 7.8 82 94 13.2 12.8 11.1 10.0 8.7 11.2 24 2.8 66 4.6 990 994 616 3.2 3.4 0.0 12.1 Rain am, sunny ints pm
25 9.4 14.0 6.1 75 94 12.7 12.5 11.1 9.7 7.3 10.9 31 8.0 191 9.0 989 1002 914 4.8 6.8 0.0 12.0 Rain am, sunny ints pm
26 7.8 13.7 3.9 71 96 12.3 12.3 11.1 6.0 6.5 11.2 35 6.2 150 2.4 1002 1011 566 4.7 1.3 0.0 11.6 Sunny intervals all day
27 7.2 14.4 4.4 49 95 11.8 11.9 11.1 5.9 2.8 9.3 36 9.4 227 0.6 1008 1018 998 4.4 9.1 0.0 11.2 Sunny intervals all day
28 5.9 14.6 2.2 64 92 11.7 11.8 11.1 6.0 3.8 9.4 19 3.5 85 0.0 1018 1023 863 5.1 3.4 0.0 11.1 Sunny intervals all day
29 7.6 15.1 5.0 78 96 12.3 11.8 11.1 5.0 6.3 11.8 17 1.1 28 3.8 1023 1025 810 4.8 8.2 0.0 11.3 Rain early am, sunny pm
30 2.9 15.6 1.1 77 97 12.3 12.0 11.1 5.1 1.9 11.9 14 1.5 34 0.0 1021 1025 832 5.5 9.8 0.0 11.6 Sunny intervals all day
5.5 15.0 2.7 63 93 10.9 10.7 10.3 7.3 3.4 9.5 20 3.8 2718 64.5 1009 1016 729 3.9 220.0 3.3 11.2  
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