Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The transition into December marks the average high-temperature at a still frosty 6.8°C (44.2°F), differing minimally from November's 9.2°C (48.6°F). During the nights of December, Sileby records an average low-temperature of 2.5°C (36.5°F), reflecting a modest decrease from daytime highs.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 90%.Rainfall
In Sileby, in December, during 7.2 rainfall days, 10mm (0.39") of precipitation is typically accumulated. In Sileby, during the entire year, the rain falls for 89 days and collects up to 123mm (4.84") of precipitation.Snowfall
January through March and December are months with snowfall in Sileby. December is the first month it typically snows. Throughout December, in the average 1.5 snowfall days, it receives 3mm (0.12") of snow. Throughout the year, there are 6.6 snowfall days, and 15mm (0.59") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 42min of daylight.On the first day of December, sunrise is at 7:54 am and sunset at 3:53 pm. On the last day of the month, sunrise is at 8:16 am and sunset at 3:59 pm GMT.
Sunshine
In December, the average sunshine in Sileby, United Kingdom, is 4.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is December in Sileby?
What is the most humid month in Sileby?
What is the average humidity in December in Sileby?
How many days does it rain in December in Sileby?
When does it start snowing in Sileby?
What is the month with the shortest days in Sileby?
How many hours of daylight does Sileby have in December?
When are sunrise and sunset in December in Sileby?
How long on average sun shines in December in Sileby?
What are the months with the lowest UV index in Sileby?
What is the UV index reading in December in Sileby?
Average temperature in December
Sileby, United Kingdom
- Average high temperature in December: 6.8°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is August (12.2°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in December
Sileby, United Kingdom
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.6mbar).
Average wind speed in December
Sileby, United Kingdom
- Average wind speed in December: 18.4km/h
The windiest months (with the highest average wind speed) are February and December (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in December
Sileby, 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 August (79%).
Average rainfall in December
Sileby, United Kingdom
- Average rainfall in December: 10mm
The wettest month (with the highest rainfall) is June (19mm).
The driest months (with the least rainfall) are January, March and April (7mm).
Average rainfall days in December
Sileby, United Kingdom
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is August (8.7 days).
The month with the least rainy days is September (5.2 days).
Average snowfall in December
Sileby, United Kingdom
- Average snowfall in December: 3mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Sileby, United Kingdom
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Sileby, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 7h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Sileby, United Kingdom
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is July (16.4 days).
Average UV index in December
Sileby, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Sileby, United Kingdom
- Average cloud cover in December: 57
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April, August and September (Cloud cover 52).
Average visibility in December
Sileby, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Sileby, United Kingdom
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