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 onset of December brings an average high-temperature of a still frosty 7.8°C (46°F), nearly matching the November temperature. During December, nights cool slightly to an average low of 3.9°C (39°F).Humidity
January and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Old Swan, United Kingdom, during December, the rain falls for 18.5 days and regularly aggregates up to 52mm (2.05") of precipitation. In Old Swan, United Kingdom, during the entire year, the rain falls for 203.8 days and collects up to 519mm (20.43") of precipitation.Snowfall
January through April, November and December are months with snowfall in Old Swan. In Old Swan, United Kingdom, during December, snow falls for 1.3 days and regularly aggregates up to 11mm (0.43") of snow. In Old Swan, during the entire year, snow falls for 6.2 days and aggregates up to 49mm (1.93") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 36min of daylight.On the first day of the month, sunrise is at 8:04 am and sunset at 3:56 pm. On the last day of December, in Old Swan, sunrise is at 8:27 am and sunset at 4:02 pm GMT.
Sunshine
In Old Swan, the average sunshine in December is 4.1h.UV index
The months with the lowest UV index in Old Swan, United Kingdom, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What is the usual temperature for Old Swan in December?
What are the most humid months in Old Swan?
What is the average humidity in December in Old Swan?
How many days does it rain in December in Old Swan?
How many days does it snow in December in Old Swan?
What is the month with the shortest days in Old Swan?
What is the average length of the day in December in Old Swan?
When is the sunrise / sunset in December in Old Swan?
How long on average sun shines in December in Old Swan?
What is the month with the lowest UV index in Old Swan?
What is the UV index intensity in December in Old Swan?
Average temperature in December
Old Swan, United Kingdom
- Average high temperature in December: 7.8°C
The warmest month (with the highest average high temperature) is July (19.1°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in December: 3.9°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (2.7°C).
Average pressure in December
Old Swan, United Kingdom
- Average pressure in December: 1011.9mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in December
Old Swan, United Kingdom
- Average wind speed in December: 18.2km/h
The windiest month (with the highest average wind speed) is January (18.5km/h).
The calmest month (with the lowest average wind speed) is June (12.5km/h).
Average humidity in December
Old Swan, United Kingdom
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Old Swan, United Kingdom
- Average rainfall in December: 52mm
The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Old Swan, United Kingdom
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is March (14.1 days).
Average snowfall in December
Old Swan, United Kingdom
- Average snowfall in December: 11mm
The month with the highest snowfall is January (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Old Swan, United Kingdom
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Old Swan, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are April, May and July (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Old Swan, United Kingdom
- Average sunshine days in December: 8.9 days
The month with the most sunshine days is March (13.8 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in December
Old Swan, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Old Swan, United Kingdom
- Average cloud cover in December: 59
The months with the most cloud cover are January, November and December (Cloud cover 59).
The month with the least cloud cover is April (Cloud cover 48).
Average visibility in December
Old Swan, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Old Swan, United Kingdom
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