October 2017
A stroll along the beach west of Sidmouth on a warm, bright October afternoon

A warm month with below average sunshine and rainfall
Summary for October 2017
Mean Max: 17.1ºC (+1.9ºC)
Mean Min: 9.9ºC (+1.3ºC)
Mean: 13.5ºC (+1.6ºC)
High Max: 20.4ºC 8th
Low Max: 13.6ºC 17th
High Min: 15.8ºC 14th
Low Min: 1.6ºC 30th
Mean Grass Min: 6.8ºC  
Grass Min: -0.6ºC 30th
Days  >20°C 2 Days  
Days >15°C 26 Days  
Nights  >10°C 19 Days  
Nights  <5°C 6 Days  
Rain Total (gauge): 36.1 mm (41%)
Rain Total (tipping bucket): 32.4 mm (36%)
Rain Days >0.2 mm: 11 Days  
Rain Days >1.0 mm: 8 Days  
Max 24 hrs: 8.6 mm 19th
Days without any rain: 20  
Air Frost: 0 Days  
Grass Frost: 1 Day  30th
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: 117.6 Hours (92%)
Most Sunshine in a Day: 9.8 Hours 3rd 
Average Daily Sunshine: 3.8 Hours  
Sunless Days: 4 Days  
Cloudless Days: 3 Days  
Total Possible Sunshine: 331.3 Hours  
Percentage of Total Sun: 35%  
Maximum UV Index: 3.7 5th
Mean Soil Temp @ 10 cm: 13.8ºC  
Min Soil Temp @ 10 cm: 10.9ºC 31st
Max Soil Temp @ 10 cm: 15.7ºC 1st
Mean Soil Temp @ 30 cm: 14.0ºC  
Min Soil Temp @ 30 cm: 11.9ºC 31st
Max Soil Temp @ 30 cm: 15.6ºC 1st
Mean Soil Temp @ 100 cm: 14.4ºC  
Min Soil Temp @ 100 cm: 13.9ºC 31st
Max Soil Temp @ 100 cm: 15.0ºC 1st
Ave 10 Min Wind >39 mph: 0.00 Days  
N: 3.57 Days 12%
NE: 0.44 Days 1%
E: 0.44 Days 1%
SE: 2.50 Days 8%
S: 9.40 Days 30%
SW: 2.24 Days 7%
W: 1.88 Days 6%
NW: 3.04 Days 10%
Calm: 7.49 Days 24%
Wind Chill Low: 0.4ºC 30th
Mean Wind: 3.8 mph  
Max Gust: 40 mph 19th
Mean Cloud Cover: 62%  
Mean RH @ 9am: 116%  
Rain >0.1mm/hour: 9.3 Hours  
Frost Duration: 0.0 Hours  
Air Frost in a Day: 0.0 Hours  
Mean Sea Temperature: 15.6ºC (+0.2ºC)
Normal for Month: 15.4ºC  
Max Sea Temperature: 16.5ºC 1st
Min Sea Temperature: 14.1ºC 31st
Mean Pressure @ 9am: 1019.0 hPa  
Mean Pressure: 1018.6 hPa  
Max Pressure: 1035.7 hPa 27th
Min Pressure: 994.7 hPa 19th
Max Change in 24 hours: 14.8 hPa 19th
Radiation Daily Mean: 7.00 MJ/m²  
Max Daily Value: 14.00 MJ/m² 6th
Min Daily Value: 2.24 MJ/m² 24th
Number of Days with Data: 31 Days  
1-Hour Maximum: 624 W/m² 6th
Starting Time of the Hour:   13:00
Max Dewpoint: 17.8ºC 1st
Min Dewpoint: 1.0ºC 30th
Mean Dewpoint: 11.1ºC  
Max Humidity: 100%  
Min Humidity: 54% 6th
Mean Humidity: 87%  
Weather Data for Otter Valley, Devon. October 2017 
  Temp oC Grass Hum (%) Soil oC (cm) Soil DP (oC) Wind (mph) Rain Air (hPa) W/m² 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 13.8 18.8 11.1 88 100 15.7 15.6 15.0 0.0 13.3 17.8 24 4.5 109 1.0 1010 1012 212 1.7 1.1 0.0 16.4 Brief sunny ints all day
2 13.6 17.3 10.0 68 97 15.3 15.6 15.0 0.0 10.5 13.4 27 3.2 78 1.9 1011 1018 610 3.6 3.0 0.0 16.3 Sunny ints am, rain pm
3 4.7 17.2 3.3 60 100 14.1 14.8 15.0 0.8 4.2 11.1 18 1.6 39 0.0 1018 1027 793 3.4 9.8 0.0 16.2 Sunny intervals all day
4 7.1 17.9 5.0 65 100 13.6 14.2 15.0 1.0 6.3 11.7 15 2.0 47 0.0 1022 1028 756 3.5 6.4 0.0 16.1 Sunny intervals all day
5 9.8 18.3 6.7 57 98 14.1 14.2 15.0 1.0 7.6 15.1 22 4.5 107 0.0 1016 1025 789 3.7 8.7 0.0 16.1 Sunny intervals all day
6 2.9 18.9 2.2 54 100 13.1 14.1 15.0 1.0 2.4 10.8 11 1.0 24 0.0 1025 1029 704 3.3 9.2 0.0 16.0 Sunny intervals all day
7 7.6 17.9 5.6 79 99 13.3 13.8 14.5 1.0 6.7 15.6 20 2.5 61 0.0 1017 1027 275 1.8 0.7 0.0 15.9 Cloudy am, sunny  ints pm
8 7.6 20.4 5.6 66 100 13.6 13.9 14.4 1.0 6.9 14.6 11 1.1 25 0.0 1019 1021 709 3.0 7.5 0.0 15.8 Sunny intervals all day
9 11.6 17.4 8.3 73 100 14.0 13.9 14.4 1.0 10.7 14.2 11 0.9 22 0.0 1018 1021 372 2.6 0.8 0.0 15.8 Brief sunny ints all day
10 10.6 19.8 7.8 76 99 14.2 14.0 14.4 1.0 9.2 16.6 17 3.9 94 0.0 1015 1019 745 3.1 1.4 0.0 15.9 Brief sunny ints all day
11 14.1 16.9 8.9 87 96 14.7 14.4 14.4 1.2 10.7 15.3 23 7.9 190 1.7 1009 1015 221 2.2 0.2 0.0 15.9 Brief sunny ints all day
12 5.3 17.6 3.3 71 100 13.5 14.1 14.4 1.1 4.8 14.3 18 2.7 65 0.0 1013 1022 673 2.8 8.1 0.0 15.8 Sunny intervals all day
13 14.6 17.9 10.6 92 100 14.1 13.9 14.4 1.8 11.7 16.7 15 5.7 136 0.5 1020 1023 205 1.7 0.0 0.0 15.8 Cloudy all day
14 15.8 17.4 10.6 91 98 15.1 14.4 14.4 1.5 14.0 16.5 12 4.0 96 0.0 1021 1025 332 1.4 1.8 0.0 16.0 Brief sunny ints all day
15 14.9 17.2 12.2 85 100 15.1 15.0 14.4 1.4 13.3 15.6 18 5.5 133 0.0 1014 1021 434 2.3 0.4 0.0 15.9 Brief sunny ints all day
16 15.1 18.9 9.4 67 100 15.2 15.0 14.4 1.2 9.2 16.7 34 9.7 233 0.0 1010 1017 551 2.4 5.2 0.0 15.8 Sunny intervals all day
17 4.9 13.6 3.3 77 100 13.9 14.5 14.4 1.7 4.2 12.0 22 1.4 33 2.4 1016 1020 186 0.9 0.2 0.0 15.7 Brief sunny ints all day
18 10.1 13.7 8.9 96 99 13.5 13.9 14.4 2.0 9.5 13.4 7 0.9 21 1.7 1009 1016 129 1.0 0.0 0.0 15.6 Cloudy all day
19 11.3 15.6 7.8 93 100 13.6 13.9 14.4 1.8 10.4 15.5 40 5.2 124 8.6 995 1010 189 1.2 0.0 0.0 15.5 Cloudy am, rain pm
20 10.1 15.3 6.7 67 96 13.5 13.9 14.4 1.5 7.5 13.7 32 8.8 212 2.6 995 1009 640 2.1 4.9 0.0 15.3 Sunny intervals all day
21 12.1 15.1 9.4 72 98 13.5 13.9 14.3 1.4 9.3 14.7 36 11.9 285 8.2 1000 1007 670 1.9 2.5 0.0 15.2 Sunny intervals all day
22 8.2 16.0 5.0 68 92 12.8 13.4 13.9 1.3 5.7 11.0 30 5.2 126 1.0 1007 1021 650 2.1 5.7 0.0 15.0 Sunny intervals all day
23 10.6 18.6 9.4 88 99 13.2 13.3 13.9 1.6 9.3 16.8 16 3.1 75 2.9 1017 1021 535 2.3 1.1 0.0 14.9 Sunny intervals all day
24 12.3 17.2 9.4 92 100 13.9 13.8 13.9 1.9 11.7 16.0 21 5.3 127 0.0 1017 1019 148 1.2 0.0 0.0 15.0 Cloudy all day
25 14.1 20.1 8.3 62 98 14.0 13.9 13.9 2.0 10.9 14.2 16 3.1 74 0.0 1017 1023 614 2.1 9.5 0.0 15.2 Sunny all day
26 13.2 16.6 10.6 87 99 14.1 13.9 13.9 1.9 11.9 14.8 13 1.8 44 0.0 1022 1026 347 1.6 0.8 0.0 15.1 Brief sunny ints all day
27 10.6 18.2 4.4 56 99 13.9 13.9 13.9 1.7 5.4 13.0 12 1.2 30 0.0 1026 1036 499 1.9 9.4 0.0 15.0 Sunny all day
28 2.2 13.9 2.2 88 100 12.3 13.3 13.9 2.0 1.6 12.6 21 2.1 50 0.0 1026 1036 214 1.0 1.7 0.0 14.9 Sunny intervals all day
29 13.1 17.0 4.4 64 96 13.0 13.0 13.9 2.0 6.5 13.4 23 4.1 101 0.0 1022 1029 538 2.0 5.3 0.0 15.0 Sunny intervals all day
30 1.6 13.9 -0.6 55 100 11.9 12.9 13.9 1.9 1.0 8.6 8 0.9 33 0.0 1028 1032 491 1.8 9.2 0.0 14.8 Sunny all day
31 2.2 14.2 1.1 81 100 10.9 11.9 13.9 1.8 7.9 11.2 11 3.0 27 0.0 1024 1028 332 1.4 2.9 0.0 14.7 Sunny am, cloudy pm
9.9 17.1 6.8 75 99 13.8 14.0 14.4 1.4 8.2 14.1 19 3.8 2820 32.4 1015 1022 470 2.2 117.6 0.0 15.6  
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