Otter Valley, Devon - Winter 2017/18
 

Summary for 2018

Sunnier than normal with around average rainfall and temperature.

Mean Max: 9.5ºC
Mean Min: 2.6ºC
Mean: 6.0ºC

High Max: 14.1ºC 30th Dec
Low Max: 1.2ºC 28th Feb
High Min: 10.7ºC 28th Jan
Low Min: -4.8ºC 28th Feb
Grass Min: -8.3ºC 28th Feb

Days 10°C 42 Days
Days 5°C 84 Days
Nights 10°C 2 Days
Nights 5°C 66 Days

Rain Total (gauge): 219.2 mm
Rain Days 0.2 mm: 46 Days
Rain Days 1.0 mm: 34 Days
Max 24 hrs: 16.3 mm 25 Dec
Days without any rain: 44

Air Frost: 28 Days
Grass Frost: 61 Days
Snow Falling: 1 Day 12th Feb
Snow (50%) @ 9am: 0 Days
Thunder Heard: 3 Days
Hail 5 mm: 8 Days
Hail 5 mm: 0 Days
Fog @ 9am: 2 Days

Total Winter Sunshine: 304.5 Hours
Most Sunshine in a Day: 9.9 Hours 25th Feb
Average Daily Sunshine: 3.4 Hours
Sunless Days: 15 Days
Cloudless Days: 8 Days
Total Possible Sunshine: 797 Hours
Percentage of Total Sun: 38%

Ave 10 Min Wind 39 mph: 0.00 mph
Mean Wind: 3.5 mph
Max Gust: 51 mph 13th Feb
Mean Cloud Cover: 53%
Mean RH @ 9am: 91%

Mean Pressu 1014.0 hPa
Max Pressu 1037.0 hPa 21st Dec
Min Pressu 975.6 hPa 11th Dec

Max Dewpoint: 12.6ºC 4th Jan
Min Dewpoint: -12.8ºC 28th Feb
Mean Dewpoint: 3.5ºC

Max Humidity: 100% Several days
Min Humidity: 41% 28th Feb
Mean Humidity: 85%

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalleyweather.me.uk