August 2010
Blackberries starting to ripen and spiders are building their webs in preparation for the big cranefly emergence.
Blackberries starting to ripen and spiders are building their webs in preparation for the big crane fly emergence.
Summary for  August 2010
Mean Max: 21.1ºC (-0.1ºC)
Mean Min: 11.4ºC (-0.6ºC)
Mean: 16.2ºC (-0.4ºC)
     
High Max: 25.1ºC 6th
Low Max: 16.8ºC 25th
High Min: 18.3ºC 21st
Low Min: 3.3ºC 30th
Mean Grass Min: 9.7ºC  
Grass Min: 2.4ºC 30th
     
Rain Total (gauge): 81.2 mm (169%)
Rain Total (tipping bucket): 75.7 mm (157%)
Rain Days >0.2 mm: 14 Days  
Rain Days >1.0 mm: 12 Days  
Max 24 hrs: 15.8 mm 23rd
Days without any rain: 17  
     
Air Frost: 0 Days  
Ground Frost: 0 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: 172h:23m  
Total Monthly Sunshine: 172.3 Hours  
Most Sunshine in a Day: 13h:18m 30th
Average Daily Sunshine: 05h:33m  
Sunless Days: 1 Days  
Cloudless Days: 1 Days  
Total Possible Sunshine: 448h:59m  
Percentage of Total Sun: 38%  
     
Mean Soil Temp @ 30 cm: 15.7ºC  
Min Soil Temp @ 30 cm: 14.2ºC 30th
Max Soil Temp @ 30 cm: 16.9ºC 31st
Mean Soil Temp @ 100 cm: 15.5ºC  
Min Soil Temp @ 100 cm: 14.9ºC 31st
Max Soil Temp @ 100 cm: 17.0ºC 4th
     
Mean 10 Min Wind >39 mph: 0.00 Days  
N: 1.92 Days  
NE: 1.71 Days  
E: 1.01 Days  
SE: 3.54 Days  
S: 4.19 Days  
SW: 3.66 Days  
W: 9.34 Days  
NW: 5.64 Days  
Calm: 0.00 Days  
Mean Wind: 2.7 mph  
Max Gust: 25 mph 4th
     
Mean Cloud Cover: 61%  
Mean RH @ 9am: 88%  
Rain Duration >0.1mm/hour: 33.8 Hours  
Frost Duration: 0.0 Hours  
Max Frost Duration in a Day: 0.0 Hours  
     
Mean Sea Temperature: 17.1ºC  
Normal for Month:    
Max Sea Temperature: 17.8ºC 22nd
Min Sea Temperature: 16.8ºC 6th
     
Mean Pressure @ 9am: 1014.6 hPa (-2.7 hPa)
Mean Pressure: 1014.8 hPa (-2.5 hPa)
Max Pressure: 1026.3 hPa 30th
Min Pressure: 998.2 hPa 23rd
     
Max Dewpoint: 17.8ºC 21st
Min Dewpoint: 1.1ºC 30th
Mean Dewpoint: 11.0ºC  
     
Max Humidity: 93% 20th
Min Humidity: 42% 30th
Mean Humidity: 76% (-2)

 

A disappointingly cloudy and cool month.

Temperatures were below normal by day and night.

Despite the poor amounts of sunshine and warmth this was still the sunniest and warmest August since 2007.
Rainfall was sporadic and only fell on a few days, but one day (23rd) had 15.8 mm of rain.
As you would expect from a summer month, there were no air or grass frosts.
Sunshine amounts were generally quite low though there was an improvement during the last week.
Soil temperatures were around normal throughout the month.
Winds were dominant from the west sectors, though there were frequent sea breezes from the SSE.
Rainfall duration was 33.8 hours.
Sea temperatures feel slightly throughout the month, mainly due to run of quite cool nights.
Mean pressure was below average and indicative of the unsettled nature of this month.
Dewpoints were below average.
The RH ended up being slightly below normal.
Weather Data for Otter Valley, Devon.  August 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 14.7 21.1 17.9 58 86 72 10.9 13.0 12.0 12 3.0 61 0.0 1013 1015 1014 13.7 1.6 Sunny intervals all day
2 8.1 23.7 15.9 47 91 69 5.5 12.7 9.1 19 3.2 78 0.0 1015 1019 1017 11.4 10.5 Sunny intervals all day
3 10.9 21.1 16.0 66 90 78 7.5 16.1 11.8 15 2.7 66 0.0 1014 1019 1017 9.1 6.8 Sunny intervals all day
4 13.4 20.7 17.1 57 88 73 9.2 15.2 12.2 25 5.5 133 3.3 1007 1014 1010 11.8 7.3 Showers am, sunny ints pm
5 8.8 21.2 15.0 47 91 69 6.2 12.4 9.3 10 0.6 14 0.0 1012 1015 1013 6.5 5.0 Sunny intervals all day
6 13.0 25.1 19.1 58 89 74 9.3 17.7 13.5 0 0.0 0 0.0 1013 1016 1014 12.8 3.2 Sunny intervals all day
7 15.1 22.3 18.7 60 89 75 11.8 14.5 13.2 0 0.0 0 3.5 1013 1018 1016 10.3 2.9 Sunny intervals all day
8 9.2 21.3 15.3 61 91 76 6.9 13.9 10.4 0 0.0 0 0.0 1018 1022 1020 7.3 2.6 Brief sunny intervals all day
9 7.4 22.0 14.7 69 90 80 4.8 16.2 10.5 16 0.8 20 0.0 1013 1020 1016 5.9 2.1 Brief sunny intervals all day
10 12.6 21.7 17.2 75 91 83 9.8 17.6 13.7 20 2.7 66 6.6 1008 1013 1010 12.3 2.9 Rain am, sunny intervals pm
11 8.6 21.3 15.0 52 92 72 6.5 13.7 10.1 18 3.4 82 0.0 1011 1016 1014 8.0 8.9 Sunny intervals all day
12 8.3 18.2 13.3 61 91 76 6.0 12.3 9.2 21 4.1 99 0.0 1016 1020 1018 6.8 5.4 Sunny am, cloudy pm
13 8.1 20.5 14.3 56 91 74 5.7 11.6 8.7 23 2.3 54 3.5 1019 1020 1019 6.1 9.5 Sunny intervals all day
14 12.4 21.3 16.9 58 91 75 10.0 13.9 12.0 16 1.7 40 9.2 1016 1020 1018 11.4 4.4 Sunshine & showers all day
15 10.3 23.8 17.1 55 92 74 8.3 15.0 11.7 0 0.0 0 0.0 1017 1022 1020 8.4 9.3 Sunny intervals all day
16 9.4 24.2 16.8 46 91 69 7.1 13.3 10.2 0 0.0 0 0.0 1017 1022 1019 8.4 10.1 Sunny intervals all day
17 14.3 23.1 18.7 61 89 75 11.6 16.9 14.3 0 0.0 0 1.3 1010 1018 1014 13.2 4.2 Cloudy am, sunny ints pm
18 8.8 20.4 14.6 56 91 74 6.2 12.9 9.6 0 0.0 0 0.9 1008 1011 1009 6.7 6.1 Sun & light showers pm
19 9.2 19.9 14.6 70 91 81 6.5 14.7 10.6 0 0.0 0 5.3 1010 1012 1011 7.1 1.7 Brief sunny intervals all day
20 15.8 18.9 17.4 90 93 92 13.7 17.2 15.5 0 0.0 0 3.5 1011 1016 1014 14.6 1.1 Brief sunny ints and drizzle
21 18.3 20.9 19.6 83 92 88 16.1 17.8 17.0 0 0.0 0 0.0 1016 1018 1017 17.4 2.0 Brief sunny intervals all day
22 14.7 22.1 18.4 65 90 78 12.5 16.3 14.4 0 0.0 0 7.9 1008 1017 1013 13.0 4.3 Sunny ints am, cloudy pm
23 12.6 20.2 16.4 59 92 76 9.3 16.5 12.9 0 0.0 0 15.8 998 1007 1003 13.7 5.5 Showers am, sunny ints pm
24 10.7 19.4 15.1 59 89 74 8.0 12.3 10.2 0 0.0 0 0.0 1006 1014 1010 9.2 9.5 Showers am, sunny ints pm
25 10.4 16.8 13.6 76 92 84 7.6 15.2 11.4 0 0.0 0 12.3 1005 1016 1010 13.8 0.0 Rain intermittent all day
26 15.3 18.8 17.1 81 93 87 12.8 16.6 14.7 0 0.0 0 1.8 1003 1005 1004 11.7 0.4 Sunny ints am, cloudy pm
27 11.9 20.7 16.3 49 90 70 9.1 12.6 10.9 0 0.0 0 0.0 1004 1018 1011 5.5 7.9 Sunny intervals all day
28 6.6 19.3 13.0 55 92 74 4.2 12.3 8.3 0 0.0 0 0.0 1018 1023 1021 10.0 7.5 Sunny intervals all day
29 11.7 17.2 14.5 64 90 77 5.5 12.2 8.9 0 0.0 0 0.7 1018 1023 1020 2.4 3.9 Sunny intervals all day
30 3.3 22.1 12.7 42 92 67 1.1 10.3 5.7 0 0.0 0 0.0 1021 1026 1024 8.0 13.3 Sunny all day
31 7.3 22.6 15.0 53 90 72 4.4 13.3 8.9 0 0.0 0 0.0 1023 1026 1024 5.3 12.6 Sunny intervals all day
11.0 21.0 16.0 61 91 76 8.2 14.4 11.3 18 2.7 711 75.7 1012 1018 1015 9.7 172.30  

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