Summary for December 2007

Cold, dreary, damp, dull.........though the grass did stop growing for a
time.

A mild start and end with the middle of the month dominated by a cold, dry
spell with some very sharp frosts (for here). No rainfall from the 12th -
24th.

Mean Max: 8.9C
Mean Min: 2.4C
Mean: 5.6C

High Max: 14.0C 6th
Low Max: 2.3C 20th
High Min: 9.4C 28th
Low Min: -4.1C 11th
Grass Min: -5.9C 23rd

Rain Total: 73.2 mm
Rain Days 0.2 mm: 14 Days
Rain Days 1.0 mm: 11 Days
Max 24 hrs: 13.8 mm 14th
Days without any rain: 13 Days

Air Frost: 10 Days
Ground Frost: 14 Days
Snow Falling: 0 Days
Thunder Heard: 0 Days
Hail 5 mm: 0 Days
Hail 5 mm: 0 Days
Fog @ 9am: 0 Days

Total monthly sunshine: 68.9 Hours
Most sunshine in a day: 7.7 Hours 10th
Sunless days: 5 Days

Mean Soil Temp @ 30 cm: 6.2C
Mean Soil Temp @ 100 cm: 8.1C

Mean Wind: 5.1 mph
Max Gust: 42mph 2nd

Cloud cover: 57%
Mean RH @ 9am: 84%
Rain Duration 0.1mm/hour: 45.8 Hours
Frost Duration: 42.8 Hours

Mean Sea Temperatu 10.5C*
Max Sea Temperatu 11.8C 6th
Min Sea Temperatu 9.0C 21st

Mean Pressure @ 9am: 1019.9 mb
Max Pressu 1038.5 mb 13th
Min Pressu 979.2 mb 9th

Max Dewpoint: 11.4C 6th
Min Dewpoint: -5.9C 11th
Mean Dewpoint: 3.1C

Max Humidity: 88% 26th
Min Humidity: 60% 10th
Mean Humidity: 81%

*Near surface sea temperature taken at West Bay Buoy, Lyme Bay.
Temperature taken by sheathed min & max thermometers housed in Stevenson
Screen. Rainfall by standard rain gauge. Wind speed, humidity, pressure &
sunshine recorded electronically by Davis AWS and R&D sunshine sensor.
____________________
Nick G
Otter Valley, Devon
83 m amsl
http://www.ottervalley.co.uk