December weather forecastGrasmere, United Kingdom
December
Weather in December
The first month of the winter, December, is also an icy month in Grasmere, United Kingdom, with an average temperature fluctuating between 5.9°C (42.6°F) and 2.6°C (36.7°F).Temperature
Grasmere registers an average high-temperature of a cold 5.9°C (42.6°F) with the arrival of December, showing minor deviation from the preceding month. December nights anticipate an average temperature of 2.6°C (36.7°F), a modest decline from the daytime.Humidity
January and December, with an average relative humidity of 90%, are the most humid months.Rainfall
The month with the most rainfall is December, when the rain falls for 17.2 days and typically aggregates up to 95mm (3.74") of precipitation.Snowfall
January through June, October through December are months with snowfall. In Grasmere, in December, during 6 snowfall days, 84mm (3.31") of snow is typically accumulated. Throughout the year, there are 39.4 snowfall days, and 571mm (22.48") of snow is accumulated.Daylight
With an average of 7h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 8:10 am and sunset at 3:51 pm. On the last day of the month, sunrise is at 8:33 am and sunset at 3:57 pm GMT.
Sunshine
December has the least sunshine of the year in Grasmere, with an average of 2.7h of sunshine.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grasmere, United Kingdom
- Average high temperature in December: 5.9°C
The warmest month (with the highest average high temperature) is July (16°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in December: 2.6°C
The month with the highest average low temperature is August (10.7°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure in December
Grasmere, United Kingdom
- Average pressure in December: 1010.2mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.1mbar).
Average wind speed in December
Grasmere, United Kingdom
- Average wind speed in December: 21.7km/h
The windiest month (with the highest average wind speed) is December (21.7km/h).
The calmest month (with the lowest average wind speed) is June (12.8km/h).
Average humidity in December
Grasmere, United Kingdom
- Average humidity in December: 90%
The months with the highest relative humidity are January and December (90%).
The month with the lowest relative humidity is April (84%).
Average rainfall in December
Grasmere, United Kingdom
- Average rainfall in December: 95mm
The wettest month (with the highest rainfall) is December (95mm).
The driest month (with the least rainfall) is April (37mm).
Average rainfall days in December
Grasmere, United Kingdom
- Average rainfall days in December: 17.2 days
The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in December
Grasmere, United Kingdom
- Average snowfall in December: 84mm
The month with the highest snowfall is January (174mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in December
Grasmere, United Kingdom
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grasmere, United Kingdom
- Average daylight in December: 7h and 24min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 2h and 42min
The month with the most sunshine is April (Average sunshine: 6h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in December
Grasmere, United Kingdom
- Average sunshine days in December: 7.9 days
The month with the most sunshine days is April (12.5 days).
The months with the least sunshine days are November and December (7.9 days).
Average UV index in December
Grasmere, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May and June (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Grasmere, United Kingdom
- Average cloud cover in December: 72
The months with the most cloud cover are January and December (Cloud cover 72).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in December
Grasmere, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (9km).
The months with the lowest visibility are January and July (8km).
