March 2020

Dramatic skies out over the sea on a showery March day

A month of two extremes. First half was mild, wet and dull. Second half was cooler, dry and very sunny. Overall, slightly warmer and drier than normal with well above average sunshine. This March was the warmest since 2019 (9.5C); driest since 2015 (39 mm); sunniest since 2012 (190 hours).

Summary for March 2020
Mean Max: 12.5C (+1.5C)
Mean Min: 3.7C (-0.4C)
Mean: 8.1C (+0.5C)
High Max: 16.9C 10th
Low Max: 7.8C 5th
High Min: 11.6C 10th
Low Min: -2.3C 26th
Mean Grass Min: 0.2C  
Grass Min: -4.4C 26th
Days  >10C 3 Days  
Days >5C 29 Days  
Nights  >5C 9 Days  
Nights  >0C 26 Days  
Rain Total (gauge): 54.3 mm (86%)
Rain Total (tipping bucket): 50.3 mm (79%)
Rain Days >0.2 mm: 14 Days  
Rain Days >1.0 mm: 12 Days  
Max 24 hrs: 14.7 mm 5th
Days without any rain: 17  
Air Frost: 5 Days  
Grass Frost: 14 Days  
Snow Falling: 0 Days  
Snow (50%) @ 9am: 0 Days  
Ice Days: 0 Days  
Thunder Heard: 0 Days  
Hail <5 mm: 1 Day  
Hail >5 mm: 0 Days  
Fog @ 9am: 0 Days  
Total Monthly Sunshine: 184.6 Hours (131%)
Most Sunshine in a Day: 12.1 Hours 29th
Average Daily Sunshine: 6.0 Hours  
Sunless Days: 2 Days  
Cloudless Days: 9 Days  
Total Possible Sunshine: 370.1 Hours  
Percentage of Total Sun: 50%  
Average Sunny Interval: 20.2 mins
Maximum UV Index: 3.8 31st
Mean Soil Temp @ 10 cm: 8.0C  
Min Soil Temp @ 10 cm: 6.2C 3rd 
Max Soil Temp @ 10 cm: 9.6C 19th
Mean Soil Temp @ 30 cm: 8.2C  
Min Soil Temp @ 30 cm: 6.7C 4th
Max Soil Temp @ 30 cm: 9.4C 19th
Mean Soil Temp @ 100 cm: 8.7C  
Min Soil Temp @ 100 cm: 8.3C 7th
Max Soil Temp @ 100 cm: 9.4C 22nd 
Ave 10 Min Wind >39 mph: 0.00 Days  
N: 4.54 Days 15%
NE: 5.36 Days 17%
E: 1.98 Days 6%
SE: 1.47 Days 5%
S: 2.75 Days 9%
SW: 5.28 Days 17%
W: 3.02 Days 10%
NW: 2.65 Days 9%
Calm: 3.94 Days 13%
Wind Chill Low: -4.4C 26th
Mean Wind: 5.2 mph  
Max Gust: 42 mph 8th
Mean Cloud Cover: 40%  
Mean RH @ 9am: 88%  
Rain >0.1mm/hour: 16.5 Hours  
Frost Duration: 17.5 Hours  
Air Frost in a Day: 7.7 Hours 26th
Mean Sea Temperature: 9.5C (+0.8C)
Normal for Month: 8.7C  
Max Sea Temperature: 10.7C 16th
Min Sea Temperature: 7.7C 6th
Mean Pressure @ 9am: 1017.1 hPa  
Mean Pressure: 1016.6 hPa  
Max Pressure: 1040.3 hPa 30th
Min Pressure: 983.6 hPa 2nd 
Max Change in 24 hours: 15.3 hPa 6th
Radiation Daily Mean: 10.11 MJ/m  
Max Daily Value: 20.33 MJ/m 22nd 
Min Daily Value: 3.19 MJ/m 5th
Number of Days with Data: 31 Days  
1-Hour Maximum: 682 W/m 29th
Starting Time of the Hour:   13:00
Max Dewpoint: 13.7C 10th
Min Dewpoint: -3.1C 29th
Mean Dewpoint: 5.0C  
Max Humidity: 99% 6th
Min Humidity: 38% 26th
Mean Humidity: 81%  
 
Weather Data for Otter Valley, Devon. March 2020
  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 2.9 10.3 -0.6 72 95 6.9 7.5 8.3 3.0 1.4 6.2 29 6.7 187 1.5 987 991 515 2.1 7.3 0.0 9.6 Sunny intervals all day
2 2.6 10.7 -1.1 62 98 6.6 7.2 8.3 3.0 1.8 5.5 23 3.7 90 3.0 984 999 620 2.0 8.7 0.0 9.4 Sunny intervals all day
3 0.1 12.6 -2.8 60 98 6.2 6.9 8.3 2.9 -0.7 6.0 22 2.8 66 0.0 999 1011 562 2.1 6.5 0.0 9.3 Sunny intervals all day
4 2.5 11.4 0.0 94 98 6.4 6.7 8.3 3.2 1.5 10.8 19 2.5 61 7.3 1001 1011 534 2.6 1.0 0.0 9.1 Brief sunny intervals
5 4.3 7.8 0.6 86 98 7.2 7.2 8.3 4.0 3.5 7.4 24 5.8 139 14.7 993 1001 260 1.5 0.0 0.0 9.0 Heavy rain am, cloudy pm
6 -0.8 9.8 -2.8 81 99 6.4 7.0 8.3 3.6 -1.4 7.6 20 2.3 55 0.6 999 1015 522 2.2 3.0 3.4 8.7 Sunshine & light showers
7 1.6 13.7 -1.1 80 99 6.6 7.2 8.3 3.0 0.9 11.4 32 5.2 125 0.0 1012 1017 332 1.8 0.2 0.0 9.2 Brief sunny intervals
8 7.0 13.0 3.9 70 97 8.1 7.8 8.3 0.0 5.3 10.1 42 9.4 225 3.9 1005 1012 585 2.3 5.3 0.0 9.6 Sunshine & light showers
9 4.7 11.3 0.6 74 98 7.6 7.8 8.3 0.0 3.6 10.4 22 5.0 120 2.6 1009 1017 401 2.1 2.5 0.0 9.4 Sunny ints am, rain pm
10 11.6 16.9 0.0 81 97 8.4 8.1 8.3 0.0 10.5 13.7 32 6.1 146 0.4 1007 1009 405 3.1 0.8 0.0 9.8 Brief sunny intervals
11 8.3 15.9 0.0 71 98 8.9 8.6 8.3 0.0 7.6 11.8 30 6.1 146 1.7 1006 1012 675 3.1 4.9 0.0 10.0 Sunny intervals all day
12 2.9 11.3 -1.1 59 93 9.1 9.2 8.7 0.0 1.5 8.7 34 7.4 177 1.7 1006 1015 666 2.6 8.0 0.0 9.7 Sunshine and showers
13 3.5 12.3 -1.1 65 97 8.2 8.6 8.9 0.0 2.2 7.8 22 4.9 117 2.4 1015 1021 576 2.6 3.8 0.0 9.5 Sunny intervals all day
14 4.6 12.3 1.1 78 99 8.5 8.4 8.9 0.0 4.0 9.6 28 4.9 118 2.2 1012 1015 540 2.7 1.3 0.0 9.6 Sunny intervals all day
15 7.8 10.7 0.6 84 98 9.1 8.9 8.9 0.0 3.6 9.5 36 8.7 210 6.7 1005 1013 313 1.9 1.3 0.0 9.7 Sunny intervals all day
16 -0.3 14.5 -2.2 51 99 8.9 8.6 8.9 0.0 -0.9 7.4 18 2.2 52 0.0 1013 1026 568 2.8 11.3 1.3 9.7 Sunny all day
17 2.9 13.4 -0.6 87 98 8.2 8.3 8.9 0.0 2.1 11.4 25 6.1 146 0.0 1026 1029 398 2.6 1.7 0.0 9.7 Brief sunny intervals
18 10.5 13.6 8.9 86 96 9.3 8.9 8.9 0.0 9.6 11.7 25 8.5 203 0.0 1024 1028 345 2.5 0.4 0.0 9.8 Brief sunny intervals
19 7.6 10.6 6.7 92 97 9.6 9.4 8.9 0.0 6.3 9.9 15 2.9 70 1.5 1023 1026 286 1.7 0.0 0.0 9.9 Cloudy all day. Light drizzle
20 5.7 11.7 3.9 64 95 9.2 9.3 8.9 0.0 2.1 6.5 22 6.1 146 0.0 1025 1027 564 2.8 4.0 0.0 9.8 Sunny intervals all day
21 5.4 11.8 3.3 54 85 8.9 9.1 9.0 0.0 1.7 5.7 25 6.4 153 0.0 1021 1026 526 2.6 4.9 0.0 9.7 Sunny intervals all day
22 3.6 13.6 0.6 47 77 8.6 8.9 9.4 0.0 0.5 5.9 20 4.7 101 0.0 1022 1025 586 2.7 11.7 0.0 9.5 Sunny all day
23 5.0 11.7 1.1 65 83 8.3 8.7 9.4 0.0 0.9 6.6 19 3.8 91 0.0 1023 1025 617 3.2 11.7 0.0 9.5 Sunny all day
24 1.4 14.9 -1.1 70 98 8.3 8.5 9.3 0.0 0.4 10.8 15 2.4 56 0.0 1023 1025 578 3.3 11.8 0.0 9.7 Sunny all day
25 -1.1 13.3 -3.3 58 98 8.1 8.5 8.9 0.0 -1.7 7.4 11 2.0 47 0.0 1022 1024 607 3.5 11.9 3.6 9.7 Sunny all day
26 -2.3 15.9 -4.4 38 97 7.7 8.2 8.9 0.0 -3.0 5.8 16 3.0 73 0.0 1021 1023 619 3.5 11.9 7.7 9.8 Sunny all day
27 -0.5 14.0 -3.9 49 93 7.6 8.1 8.9 0.0 -1.9 5.5 18 3.9 129 0.0 1022 1024 601 3.3 12.0 1.6 9.8 Sunny all day
28 4.2 14.3 2.2 52 86 7.8 8.1 8.9 0.0 0.7 6.6 30 9.6 229 0.0 1024 1032 625 3.3 11.9 0.0 9.7 Sunny all day
29 3.0 11.0 0.0 42 81 7.6 8.0 8.9 0.0 -3.1 2.4 35 8.8 219 0.0 1032 1040 709 3.3 12.1 0.0 9.5 Sunny intervals all day
30 0.3 11.9 -3.3 59 90 7.3 7.9 8.9 0.0 -2.1 4.9 21 5.5 202 0.0 1031 1040 937 3.6 4.7 0.0 9.2 Sunny intervals all day
31 4.3 11.7 1.1 56 70 7.7 7.8 8.9 0.0 1.7 5.0 17 5.2 49 0.0 1029 1032 739 3.8 7.7 0.0 9.2 Sunny intervals all day
3.7 12.5 0.2 67 94 8.0 8.2 8.7 0.7 1.9 8.1 24 5.2 3950 50.3 1014 1020 542 2.7 184.6 17.5 9.5  
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