October 2010
A view from Golden Cap of the coast over the border in Dorset on a very warm and sunny, if a little hazy October day.
A view from Golden Cap over the border in Dorset on a very warm and sunny, if a little hazy October day.
Summary for  October 2010
Mean Max: 15.3ºC (+0.5ºC)
Mean Min: 7.3ºC (-0.4ºC)
Mean: 11.3ºC (+0.0ºC)
     
High Max: 22.3ºC 8th
Low Max: 9.4ºC 14th
High Min: 15.3ºC 8th
Low Min: -2.2ºC 21st
Mean Grass Min: 4.2ºC  
Grass Min: -5.3ºC 24th
     
Rain Total (gauge): 82.9 mm (133%)
Rain Total (tipping bucket): 68.9 mm (110%)
Rain Days >0.2 mm: 14 Days  
Rain Days >1.0 mm: 11 Days  
Max 24 hrs: 20.5 mm 1st
Days without any rain: 17  
     
Air Frost: 2 Days  
Ground Frost: 9 Days  
Snow Falling: 0 Days  
Snow (50%) @ 9am: 0 Days  
Thunder Heard: 0 Days  
Hail <5 mm: 0 Days  
Hail >5 mm: 0 Days  
Fog @ 9am: 0 Days  
     
Total Monthly Sunshine: 163h:38m  
Total Monthly Sunshine: 163.6 Hours  
Most Sunshine in a Day: 10h:22m 11th
Average Daily Sunshine: 05h:16m  
Sunless Days: 1 Day  
Cloudless Days: 4 Days  
Total Possible Sunshine: 331h:48m  
Percentage of Total Sun: 49%  
     
Mean Soil Temp @ 30 cm: 11.8ºC  
Min Soil Temp @ 30 cm: 9.1ºC 25th
Max Soil Temp @ 30 cm: 13.8ºC 8th
Mean Soil Temp @ 100 cm: 12.7ºC  
Min Soil Temp @ 100 cm: 11.2ºC 27th
Max Soil Temp @ 100 cm: 13.7ºC 11th
     
Mean 10 Min Wind >39 mph: 0.00 Days  
N: 4.86 Days  
NE: 4.18 Days  
E: 2.66 Days  
SE: 4.66 Days  
S: 4.55 Days  
SW: 2.50 Days  
W: 4.32 Days  
NW: 3.17 Days  
Calm: 0.10 Days  
Mean Wind: 3.2 mph  
Max Gust: 44 mph 3rd
     
Mean Cloud Cover: 58%  
Mean RH @ 9am: 89%  
Rain Duration >0.1mm/hour: 46.0 Hours  
Frost Duration: 15.0 Hours  
Max Frost Duration in a Day: 8.0 Hours 21st
     
Mean Sea Temperature: 15.0ºC  
Normal for Month:    
Max Sea Temperature: 16.4ºC 4th
Min Sea Temperature: 13.5ºC 26th
     
Mean Pressure @ 9am: 1014.0 hPa (-0.4 hPa)
Mean Pressure: 1012.8 hPa (-1.6 hPa)
Max Pressure: 1030.4 hPa 25th
Min Pressure: 988.5 hPa 3rd
     
Max Dewpoint: 16.4ºC 8th
Min Dewpoint: -4.7ºC 21st
Mean Dewpoint: 7.1ºC  
     
Max Humidity: 93% 1st
Min Humidity: 49% 17th
Mean Humidity: 79% (-6)

 

After a wet start the month settled into spells of warm sunshine though with some cold nights. Only at the end did it turn unsettled again.

Temperatures were above normal by day but due to a run of cold nights during the 3rd week, the average minimum temperatures ended up below average.
There first week was very wet but then there was very little rainfall from the 7th to the 22nd.
There were a few very cold nights with air frosts, these being quite a rarity in October.
Sunshine amounts were generally above normal with the sun being fairly evenly spread throughout the month.
Soil temperatures were around normal through most of the month but ended up rather below average due to a few cold nights during the 3rd week.
Winds were all over the place though less so from the SW, which is usually the dominant direction.
Rainfall duration was 46.0 hours.
Sea temperatures fell very quickly throughout the month, mainly due to run of quite cold nights.
Mean pressure was below average.
Dewpoints were below average.
The RH ended up being rather below normal.
Weather Data for Otter Valley, Devon.  October 2010  
  Temp (oC) Hum (RH%) Dewpoint (oC) Wind (mph) Rain Pressure (hPa) Grass Sun  
  Min Max Ave Min Max Ave Min Max Ave Max Ave Run mm Min Max Ave Min Hours Observations
1 13.7 16.8 15.3 88 93 91 9.7 15.2 12.5 34 7.7 0 20.5 996 1010 1003 8.2 0.5 Rain all day, bright evening
2 5.6 16.8 11.2 70 93 82 3.8 13.3 8.6 15 1.0 0 4.2 998 1010 1004 3.8 5.3 Sunny intervals all day
3 12.1 17.2 14.7 68 93 81 8.9 13.8 11.4 44 4.6 0 18.0 989 998 993 9.8 3.6 Cloudy am, sunny ints pm
4 8.6 18.8 13.7 61 92 77 5.9 11.9 8.9 13 1.3 0 0.0 998 1001 999 5.7 9.6 Sunny all day
5 12.5 18.4 15.5 70 92 81 10.0 13.8 11.9 18 2.7 0 0.4 997 1001 999 10.8 2.9 Sunny intervals all day
6 10.3 17.6 14.0 53 91 72 7.1 12.5 9.8 20 3.4 0 3.7 999 1013 1006 4.5 8.5 Sunny intervals all day
7 7.1 17.9 12.5 64 92 78 4.8 12.3 8.6 26 3.9 0 0.0 1012 1016 1014 11.5 8.2 Sunny intervals all day
8 15.3 22.3 18.8 70 90 80 10.9 16.4 13.7 27 6.0 0 0.0 1010 1013 1012 12.5 8.2 Sunny intervals all day
9 15.3 18.8 17.1 79 91 85 12.8 14.9 13.9 22 5.4 0 0.0 1010 1013 1012 11.5 3.5 Cloudy am, sunny ints pm
10 13.3 20.4 16.9 70 90 80 9.4 14.6 12.0 21 5.0 0 0.0 1009 1012 1011 5.5 6.3 Cloudy am, sunny pm
11 8.5 18.3 13.4 53 87 70 5.9 9.7 7.8 24 5.5 0 0.0 1012 1018 1015 3.8 10.4 Sunny all day
12 7.7 16.3 12.0 62 87 75 4.8 9.3 7.1 19 4.8 0 0.0 1018 1021 1019 2.7 10.2 Sunny all day
13 4.7 11.1 7.9 72 90 81 1.2 6.9 4.1 12 1.6 0 0.0 1020 1022 1021 -0.2 2.7 Cloudy am, sunny ints pm
14 1.4 9.4 5.4 81 91 86 -1.2 6.0 2.4 10 0.7 0 0.0 1021 1023 1022 -0.2 0.0 Cloudy all day
15 8.3 13.3 10.8 67 88 78 5.3 8.1 6.7 14 1.5 0 0.0 1018 1022 1020 2.3 1.3 Cloudy am, sunny ints pm
16 6.1 15.0 10.6 62 89 76 3.1 7.8 5.5 16 2.4 0 0.0 1018 1024 1021 -1.3 8.8 Sunny intervals all day
17 0.2 14.2 7.2 49 90 70 -2.2 5.6 1.7 9 0.5 0 0.0 1024 1028 1026 0.9 9.9 Sunny all day
18 3.2 13.7 8.5 68 91 80 -0.1 10.4 5.2 14 1.6 0 0.4 1018 1026 1022 6.7 2.6 Sunny intervals all day
19 7.1 13.5 10.3 64 89 77 4.0 8.4 6.2 24 5.3 0 1.1 1012 1018 1015 -0.8 5.7 Sunny intervals all day
20 0.6 12.0 6.3 53 91 72 -1.8 4.5 1.4 14 1.4 0 0.0 1014 1025 1019 -3.1 8.9 Sunny intervals all day
21 -2.2 13.2 5.5 61 91 76 -4.7 6.6 1.0 12 0.9 0 0.0 1022 1026 1024 -0.4 6.9 Sunny intervals all day
22 1.2 13.4 7.3 65 91 78 -1.2 8.1 3.5 19 1.2 0 0.0 1014 1023 1018 4.2 6.9 Sunny intervals all day
23 7.7 11.1 9.4 80 90 85 2.1 8.9 5.5 17 3.4 0 5.7 1004 1014 1009 -1.4 2.5 Sunshine & showers all day
24 2.3 11.7 7.0 65 91 78 -0.3 5.4 2.6 17 1.8 0 0.4 1008 1022 1015 -5.3 4.0 Sunny intervals all day
25 -2.1 12.0 5.0 55 91 73 -4.3 4.9 0.3 0 0.1 0 3.5 1023 1030 1027 -2.3 8.7 Sunny all day
26 3.6 13.9 8.8 79 92 86 0.0 11.9 6.0 19 2.9 0 4.2 1020 1029 1024 7.1 0.4 Rain am, sunny ints pm
27 12.9 16.8 14.9 64 91 78 5.8 11.5 8.7 19 3.3 0 1.1 1016 1020 1018 3.1 8.5 Sunny intervals all day
28 10.4 16.1 13.3 76 91 84 5.7 11.7 8.7 19 2.7 0 0.0 1011 1017 1014 10.7 3.7 Sunny intervals all day
29 13.3 14.8 14.1 74 89 82 7.0 11.7 9.4 26 8.5 0 0.0 992 1012 1002 1.1 2.6 Sunny intervals all day
30 6.3 14.6 10.5 71 92 82 2.9 9.9 6.4 23 3.2 0 5.5 993 997 995 10.1 2.3 Sunny intervals all day
31 11.6 13.9 12.8 80 90 85 8.1 11.1 9.6 23 6.1 0 4.2 992 1004 998 9.4 0.3 Brief sunny intervals all day
7.3 15.3 11.3 68 91 79 4.1 10.2 7.1 20 3.2 0 68.9 1009 1016 1013 4.2 163.6  

Graphs for October 2010
Figure 1. Temperature and Rainfall for October 2010.
Figure 2. Sunshine, air pressure and mean wind speed for October 2010.
Figure 3. Wind direction for October 2010.
Figure 4. Soil & sea surface temperature (SST) for Lyme Bay for October 2010.