Summary for January 2009

Mean Max: 7.2ºC (-1.2ºC)
Mean Min: 1.5ºC (-1.2ºC)
Mean: 4.3ºC (-1.2ºC)

High Max: 11.6ºC 26th
Low Max: 1.1ºC 7th
High Min: 8.8ºC 12th
Low Min: -8.4ºC 7th
Mean Grass Min: -1.2ºC
Grass Min: -9.2ºC 7th

Rain Total (gauge): 122.4 mm (140%)
Rain Days 0.2 mm: 16 Days
Rain Days 1.0 mm: 13 Days
Max 24 hrs: 16.6 mm 17th
Days without any rain: 15

Air Frost: 10 Days
Ground Frost: 20 Days
Snow Falling: 0 Days
Snow (50%) @ 9am: 0 Days
Thunder Heard: 0 Days
Hail 5 mm: 1 Day 25th
Hail 5 mm: 0 Days
Fog @ 9am: 0 Days

Total Monthly Sunshine: 77.9 Hours
Most Sunshine in a Day: 7.7 Hours 6th
Average Daily Sunshine: 2.5 Hours
Sunless Days: 6 Days
Cloudless Days: 1 Day
Total Possible Sunshine: 265h:11m
Percentage of Total Sun: 29%

Mean Soil Temp @ 30 cm: 3.7ºC
Mean Soil Temp @ 100 cm: 5.1ºC

Mean 10 Min Wind 39 mph: 0.0 Days
Mean Wind: 4 mph
Max Gust: 46 mph 25th

Mean Cloud Cover: 59%
Mean RH @ 9am: 87%
Rain Duration 0.1mm/hour: 56.3 Hours
Frost Duration: 101.3 Hours
Max Frost Duration in a Day: 19.0 Hours 6th

Mean Pressure @ 9am: 1009.7 hPa (-5.6 hPa)
Mean Pressu 1009.6 hPa (-5.7 hPa)
Max Pressu 1029.3 hPa 2nd
Min Pressu 969.8 hPa 23rd

Max Dewpoint: 9.0ºC 12th
Min Dewpoint: -11.2ºC 7th
Mean Dewpoint: 1.4ºC

Max Humidity: 100% 16th
Min Humidity: 58% 6th
Mean Humidity: 83% (-3)
________________
Nick.
Otter Valley, Devon
83 m amsl
http://www.ottervalley.co.uk