July 2010
The lovely undercliff above Branscombe beach on a gloriously warm and sunny July day.
The lovely undercliff above Branscombe beach on a gloriously warm and sunny July day.
Summary for  July 2010
Mean Max: 22.8ºC (+1.3ºC)
Mean Min: 13.4ºC (+1.1ºC)
Mean: 18.1ºC (+1.2ºC)
     
High Max: 27.3ºC 9th
Low Max: 19.3ºC 24th
High Min: 17.3ºC 27th
Low Min: 7.6ºC 6th
Mean Grass Min: 11.6ºC  
Grass Min: 5.5ºC 6th
     
Rain Total (gauge): 41.6 mm (102%)
Rain Total (tipping bucket): 40.9 mm (100%)
Rain Days >0.2 mm: 10 Days  
Rain Days >1.0 mm: 8 Days  
Max 24 hrs: 13.4 mm 15th
Days without any rain: 21  
     
Air Frost: 0 Days  
Ground Frost: 0 Days  
Snow Falling: 0 Days  
Snow (50%) @ 9am: 0 Days  
Thunder Heard: 2 Days  
Hail <5 mm: 0 Days  
Hail >5 mm: 0 Days  
Fog @ 9am: 0 Days  
     
Total Monthly Sunshine: 201h:10m  
Total Monthly Sunshine: 201.2 Hours  
Most Sunshine in a Day: 11h:46m 28th
Average Daily Sunshine: 06h:29m  
Sunless Days: 0 Days  
Cloudless Days: 0 Days  
Total Possible Sunshine: 495h:19m  
Percentage of Total Sun: 41%  
     
Mean Soil Temp @ 30 cm: 16.7ºC  
Min Soil Temp @ 30 cm: 15.8ºC 5th
Max Soil Temp @ 30 cm: 17.8ºC 10th
Mean Soil Temp @ 100 cm: 15.6ºC  
Min Soil Temp @ 100 cm: 15.1ºC 1st
Max Soil Temp @ 100 cm: 16.1ºC 28th
     
Mean 10 Min Wind >39 mph: 0.00 Days  
N: 0.44 Days  
NE: 0.32 Days  
E: 0.70 Days  
SE: 9.22 Days  
S: 5.44 Days  
SW: 3.04 Days  
W: 8.10 Days  
NW: 2.02 Days  
Calm: 1.72 Days  
Mean Wind: 4.2 mph  
Max Gust: 40 mph 15th
     
Mean Cloud Cover: 59%  
Mean RH @ 9am: 85%  
Rain Duration >0.1mm/hour: 21.8 Hours  
Frost Duration: 0.0 Hours  
Max Frost Duration in a Day: 0.0 Hours  
     
Mean Sea Temperature: 17.5ºC  
Normal for Month:    
Max Sea Temperature: 18.7ºC 22nd
Min Sea Temperature: 15.9ºC 7th
     
Mean Pressure @ 9am: 1015.9 hPa (-1.4 hPa)
Mean Pressure: 1015.4 hPa (-1.9 hPa)
Max Pressure: 1027.1 hPa 6th
Min Pressure: 996.6 hPa 15th
     
Max Dewpoint: 17.8ºC 10th
Min Dewpoint: 5.0ºC 6th
Mean Dewpoint: 12.5ºC  
     
Max Humidity: 92% 16th
Min Humidity: 41% 6th
Mean Humidity: 73% (-3)

 

A warm month with average rainfall but disappointing sunshine amounts.

Temperatures were warm by day and night, mainly due to high amounts of cloud cover.

Despite the poor amounts of sunshine this was still the sunniest, warmest and driest July since 2006.
Rainfall was sporadic and only fell on a few days, but one day (15th) had 13.4 mm of rain.
As you would expect from a summer month, there were no air or grass frosts.
Sunshine amounts were generally quite low and unlike June, there were no completely cloudless days.
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 just 21.8 hours.
Sea temperatures rose slowly throughout the month and ended up above normal.
Mean pressure was slightly below average.
Dewpoints were around average.
The RH ended up being well below normal.
Weather Data for Otter Valley, Devon.  July 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 16.1 23.4 19.8 60 87 74 10.4 15.9 13.2 23 6.5 154 0.0 1009 1017 1013 12.5 3.6 Sunny ints all day, rain even
2 14.1 23.9 19.0 58 91 75 11.6 16.2 13.9 19 4.1 98 5.1 1007 1017 1012 14.5 5.9 Sunny intervals all day
3 9.2 23.3 16.3 49 91 70 6.4 14.1 10.3 15 2.5 60 0.0 1015 1021 1018 7.1 10.2 Sunny intervals all day
4 8.1 21.7 14.9 58 91 75 5.2 16.2 10.7 22 3.4 83 0.7 1018 1023 1020 6.2 7.9 Sunny intervals all day
5 12.1 20.9 16.5 48 91 70 7.9 13.6 10.8 20 4.6 110 0.0 1019 1026 1023 6.8 7.8 Bright am, sunny pm
6 7.6 23.8 15.7 41 91 66 5.0 14.2 9.6 19 3.7 88 0.0 1023 1027 1025 5.5 10.0 Sunny intervals all day
7 15.9 23.2 19.6 58 85 72 9.7 17.4 13.6 18 4.4 105 0.0 1017 1023 1020 14.8 1.9 Cloudy am, sunny ints pm
8 16.1 25.2 20.7 55 86 71 12.2 15.8 14.0 17 3.1 74 0.0 1016 1019 1017 14.1 8.7 Sunny intervals all day
9 11.4 27.3 19.4 52 91 72 8.7 16.8 12.8 15 2.4 58 0.0 1016 1017 1017 9.8 10.8 Sunny intervals all day
10 17.2 26.0 21.6 61 90 76 13.5 17.8 15.7 21 5.0 121 0.0 1014 1019 1016 13.7 10.1 Sunny intervals all day
11 15.5 22.7 19.1 48 90 69 10.0 15.5 12.8 19 4.9 119 1.3 1012 1016 1014 13.9 7.3 Sunny intervals all day
12 13.1 24.7 18.9 52 84 68 9.4 14.6 12.0 16 2.1 51 0.0 1010 1015 1013 12.3 6.6 Sunny intervals all day
13 15.3 19.6 17.5 77 89 83 12.3 16.1 14.2 16 3.6 86 1.5 1004 1011 1007 14.5 2.1 Sunny intervals all day
14 15.1 20.6 17.9 70 90 80 12.5 15.9 14.2 27 8.4 201 2.0 997 1005 1001 13.1 5.1 Sunshine & light showers
15 14.8 21.2 18.0 52 91 72 10.2 13.4 11.8 40 8.3 199 13.4 997 1006 1001 13.4 4.1 Sunny ints, rain evening.
16 10.7 21.1 15.9 65 92 79 8.4 15.2 11.8 37 6.4 153 9.2 1001 1012 1006 12.7 5.2 Sunshine & showers
17 10.8 21.1 16.0 45 89 67 7.6 11.2 9.4 20 4.2 100 0.0 1013 1023 1018 8.6 10.2 Sunny intervals all day
18 13.8 24.7 19.3 50 89 70 8.3 15.3 11.8 17 4.3 103 0.0 1023 1025 1024 11.0 10.6 Sunny intervals all day
19 14.3 25.1 19.7 46 90 68 10.6 14.0 12.3 14 3.7 88 0.0 1018 1024 1021 11.7 7.1 Sunny ints all day, rain even
20 16.1 20.1 18.1 75 91 83 10.6 16.6 13.6 17 3.9 101 5.7 1006 1018 1012 13.4 0.4 Sunny ints am, rain pm
21 10.2 21.7 16.0 57 92 75 7.9 15.0 11.5 22 4.1 99 0.4 1005 1007 1006 9.1 8.3 Sunny intervals all day
22 10.4 23.0 16.7 56 92 74 7.4 14.3 10.9 14 2.1 51 1.5 1006 1014 1010 8.4 7.8 Sunny intervals all day
23 10.5 23.1 16.8 54 92 73 8.2 14.2 11.2 12 2.0 48 0.0 1014 1023 1019 10.1 3.3 Sunny intervals all day
24 13.3 19.3 16.3 64 89 77 9.7 13.1 11.4 12 2.1 45 0.0 1021 1024 1023 11.2 3.5 Sunny intervals all day
25 15.7 24.8 20.3 53 90 72 12.5 15.4 14.0 16 3.8 89 0.0 1017 1021 1019 14.8 11.1 Sunny intervals all day
26 16.8 24.9 20.9 62 91 77 12.7 17.4 15.1 18 5.6 135 0.0 1018 1019 1019 13.4 6.0 Sunny intervals all day
27 17.3 21.6 19.5 77 90 84 14.2 17.3 15.8 16 3.6 87 0.0 1018 1020 1019 15.4 1.4 Brief sunny intervals all day
28 12.8 22.3 17.6 53 91 72 10.3 14.7 12.5 22 5.3 127 0.0 1018 1020 1019 11.2 11.8 Sunny intervals all day
29 9.6 21.9 15.8 55 91 73 6.8 13.6 10.2 19 3.8 90 0.0 1017 1019 1018 7.8 9.1 Sunny intervals all day
30 14.1 22.3 18.2 58 84 71 9.7 15.4 12.6 14 2.6 64 0.0 1013 1018 1015 15.3 1.3 Brief sunny intervals all day
31 16.6 20.8 18.7 58 89 74 11.2 15.1 13.2 18 4.7 115 0.0 1011 1014 1012 13.4 2.1 Brief sunny intervals all day
13.4 22.8 18.1 57 90 73 9.7 15.2 12.5 19 4.2 3099 40.9 1013 1018 1015 11.6 201.2  

Graphs for July 2010
Figure 1. Temperature and Rainfall for July 2010.
Figure 2. Sunshine, air pressure and mean wind speed for July 2010.
Figure 3. Wind direction for July 2010.
Figure 4. Soil & sea surface temperature (SST) for Lyme Bay for July 2010.
Figure 5. Wind run, maximum gusts and mean pressure for July 2010.