June 2021

Late afternoon sunshine on Weston Beach on a warm and humid June day

A rather lovely summer month being mostly dry and sunny until the fourth week when there was some welcome (if rather heavy) rain. Warmer, slightly sunnier but much wetter than normal. The high rainfall figure was due to two torrential thundery downpours at the end of the month, otherwise most of June was dry and settled. Warmest June since 2018 (17.3C), and the sunniest and wettest since 2020 (243 hours and 93.3 mm).

Summary for June 2021
Mean Max: 21.8C (+2.4C)
Mean Min: 11.5C (+0.6C)
Mean: 16.7C (+1.5C)
High Max: 27.2C 14th
Low Max: 15.2C 21st
High Min: 15.8C 2nd 
Low Min: 5.5C 4th
Mean Grass Min: 8.8C  
Grass Min: 3.3C 5th
Days  >25C 3 Days  
Days >20C 24 Days  
Nights  >15C 5 Days  
Nights  <10C 8 Days  
Rain Total (gauge): 72.2 mm (145%)
Rain Total (tipping bucket): 68.4 mm (138%)
Rain Days >0.2 mm: 9 Days  
Rain Days >1.0 mm: 8 Days  
Max 24 hrs: 17.3 mm 27th
Days without any rain: 21  
Air Frost: 0 Days  
Grass Frost: 0 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: 233.0 Hours (106%)
Most Sunshine in a Day: 15.9 Hours 13th
Average Daily Sunshine: 7.8 Hours  
Sunless Days: 0 Days  
Cloudless Days: 0 Days  
Total Possible Sunshine: 492.4 Hours  
Percentage of Total Sun: 47%  
Average Sunny Interval: 21.7 mins
Maximum UV Index: 9.7 11th
Mean Soil Temp @ 10 cm: 17.9C  
Min Soil Temp @ 10 cm: 15.6C 1st
Max Soil Temp @ 10 cm: 26.8C 28th
Mean Soil Temp @ 30 cm: 17.0C  
Min Soil Temp @ 30 cm: 14.5C 1st
Max Soil Temp @ 30 cm: 23.3C 21st
Mean Soil Temp @ 100 cm: 14.4C  
Min Soil Temp @ 100 cm: 12.2C 1st
Max Soil Temp @ 100 cm: 19.4C 21st
Ave 10 Min Wind >39 mph: 0.00 Days  
N: 7.03 Days 23%
NE: 3.67 Days 12%
E: 1.96 Days 6%
SE: 1.45 Days 5%
S: 4.02 Days 13%
SW: 3.25 Days 10%
W: 0.50 Days 2%
NW: 3.15 Days 10%
Calm: 5.97 Days 19%
Wind Chill Low: 5.1C 23rd 
Mean Wind: 2.8 mph  
Max Gust: 27 mph 3rd 
Mean Cloud Cover: 48%  
Mean RH @ 9am: 85%  
Rain >0.1mm/hour: 21.2 Hours  
Frost Duration: 0.0 Hours  
Air Frost in a Day: 0.0 Hours  
Mean Sea Temperature: 15.2C (-0.0C)
Normal for Month: 15.2C  
Max Sea Temperature: 17.7C 28th
Min Sea Temperature: 13.2C 1st
Mean Pressure @ 9am: 1018.6 hPa  
Mean Pressure: 1018.3 hPa  
Max Pressure: 1027.6 hPa 13th
Min Pressure: 1006.3 hPa 20th
Max Change in 24 hours: 9.3 hPa 21st
Radiation Daily Mean: 21.45 MJ/m  
Max Daily Value: 32.02 MJ/m 1st
Min Daily Value: 6.38 MJ/m 21st
Number of Days with Data: 30 Days  
1-Hour Maximum: 918 W/m 25th
Starting Time of the Hour:   13:00
Max Dewpoint: 19.4C 11th
Min Dewpoint: 4.8C 4th
Mean Dewpoint: 13.2C  
Max Humidity: 100% 9th
Min Humidity: 37% 1st
Mean Humidity: 81%  
 
Weather Data for Otter Valley, Devon. June 2021
  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 13.6 24.7 9.4 37 85 15.6 14.5 12.2 0.0 8.4 14.1 17 2.8 66 0.0 1011 1016 895 8.1 15.6 0.0 14.0 Sunny all day
2 15.8 19.6 10.0 58 94 15.9 15.0 12.2 0.0 9.4 17.2 18 2.6 63 3.0 1009 1013 790 8.1 2.2 0.0 14.0 Sunshine & light showers
3 13.3 20.1 11.7 67 97 16.0 15.0 12.8 0.0 11.1 14.7 27 4.2 102 0.0 1013 1021 970 8.1 6.8 0.0 14.3 Sunny intervals all day
4 5.5 20.9 3.9 51 99 15.8 15.3 12.8 0.0 4.8 13.7 19 3.0 72 0.0 1021 1025 848 7.0 15.7 0.0 14.7 Sunny all day
5 6.4 20.7 3.3 71 98 15.7 15.3 12.8 0.0 5.7 16.5 22 3.0 73 0.0 1024 1026 1058 8.7 10.2 0.0 14.6 Sunny am, cloudy pm
6 14.0 21.8 11.1 72 98 16.4 15.6 13.2 0.0 13.3 17.3 15 2.2 52 0.0 1023 1025 1027 8.6 6.8 0.0 15.2 Sunny intervals all day
7 9.4 20.2 5.6 67 99 16.2 15.7 13.3 0.0 8.6 15.9 14 1.5 36 0.0 1022 1025 1049 7.6 9.8 0.0 15.3 Sunny intervals all day
8 6.9 21.4 4.4 63 99 16.1 15.7 13.3 0.0 6.0 16.0 17 2.4 57 0.0 1022 1024 883 7.6 15.4 0.0 15.2 Sunny all day
9 7.6 21.8 5.0 77 100 16.2 15.7 13.3 0.0 6.9 17.9 18 2.2 53 0.0 1021 1023 994 9.2 7.6 0.0 15.3 Sunny intervals all day
10 15.6 22.7 13.3 79 97 17.0 16.1 13.3 0.0 14.7 19.2 17 3.1 75 0.0 1020 1022 988 9.3 8.8 0.0 14.9 Sunny intervals all day
11 15.0 23.6 11.7 74 98 17.6 16.3 13.9 0.0 14.1 19.4 23 3.3 78 0.0 1020 1021 1127 9.7 4.6 0.0 14.6 Sunny intervals all day
12 11.5 25.8 7.8 50 98 17.5 16.7 13.9 0.0 10.6 17.0 13 2.7 64 0.0 1021 1026 1013 9.1 14.2 0.0 14.6 Sunny intervals all day
13 10.6 26.2 8.3 55 97 17.6 16.7 13.9 0.0 9.7 18.8 15 2.6 63 0.0 1023 1028 814 8.2 15.9 0.0 15.3 Sunny all day
14 10.9 27.2 7.8 53 99 17.8 17.0 14.0 0.0 10.2 19.0 18 3.3 79 0.0 1021 1024 831 8.4 14.7 0.0 15.6 Sunny all day
15 9.5 24.2 6.1 56 98 17.8 17.1 14.4 0.0 8.6 16.6 15 4.0 95 0.0 1017 1023 826 8.3 15.9 0.0 15.5 Sunny all day
16 8.6 23.3 5.6 55 100 17.6 17.0 14.4 0.0 7.8 16.8 14 2.5 61 0.9 1009 1017 895 8.7 10.3 0.0 16.0 Sunny intervals all day
17 13.1 23.9 12.2 57 96 17.6 17.0 14.4 0.0 11.5 15.5 17 3.7 90 2.1 1009 1014 1000 7.7 6.8 0.0 14.4 Sunny intervals all day
18 13.7 20.3 10.6 67 90 17.4 17.0 14.4 0.8 9.5 14.5 20 5.5 131 0.0 1013 1015 733 7.8 6.5 0.0 14.4 Sunny intervals all day
19 11.3 16.4 8.3 81 97 16.9 16.8 14.9 1.0 10.0 13.5 9 0.4 10 8.5 1009 1016 334 3.6 0.0 0.0 15.3 Cloudy, rain evening
20 13.6 21.7 13.3 75 99 16.7 17.8 15.0 0.0 12.9 17.9 13 2.0 47 10.2 1006 1010 1088 7.6 4.1 0.0 16.1 Rain am, sunny ints pm
21 11.8 15.2 13.9 90 97 16.7 17.8 15.0 0.0 10.6 14.4 22 4.4 105 12.4 1008 1017 213 2.3 0.0 0.0 15.6 Light rain all day
22 11.5 18.8 8.3 57 96 17.1 16.6 15.4 0.0 8.9 12.0 19 4.7 113 0.0 1017 1024 1096 8.2 4.8 0.0 15.4 Sunny intervals all day
23 6.2 22.8 4.4 50 99 16.2 16.0 15.0 0.0 5.4 15.5 17 2.6 62 0.0 1023 1025 1065 7.4 10.1 0.0 15.8 Sunny intervals all day
24 11.2 21.6 8.3 74 96 16.6 16.1 14.7 0.0 10.0 17.8 12 1.7 40 0.0 1021 1024 751 9.1 2.4 0.0 16.0 Sunny intervals all day
25 14.1 20.7 11.1 56 98 17.1 16.3 14.7 0.0 10.7 15.1 17 3.3 80 3.0 1016 1022 996 7.9 5.0 0.0 15.5 Sunny intervals all day
26 12.4 19.7 8.9 62 94 17.2 16.7 15.0 0.0 10.1 13.9 11 0.9 21 0.0 1016 1017 860 7.0 2.3 0.0 15.6 Brief sunny ins all day
27 11.6 21.8 3.3 78 97 17.0 16.7 15.0 0.1 10.1 18.1 20 3.3 80 17.3 1012 1017 1079 8.6 1.5 0.0 14.7 Cloudy am, rain pm
28 15.3 23.2 14.4 71 98 18.3 17.8 15.0 0.0 14.6 19.0 13 1.9 45 11.1 1012 1015 1073 8.5 4.3 0.0 15.8 Rain early am then fine
29 15.1 19.8 13.3 75 95 18.1 17.5 15.0 0.0 13.9 16.3 14 2.8 70 0.0 1014 1017 466 0.9 0.4 0.0 15.5 Brief sunny ins all day
30 11.0 24.7 9.4 64 99 18.0 17.5 15.0 0.0 10.3 19.3 14 2.0 44 0.0 1016 1018 939 1.3 10.2 0.0 15.8 Sunny intervals all day
11.5 21.8 8.8 65 97 16.9 16.4 14.1 0.1 9.9 16.4 17 2.8 2025 68.4 1016 1020 890 7.4 233.0 0.0 15.2  
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