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 advent of December reveals an average high-temperature of a still chilly 6.8°C (44.2°F), showing minimal difference from the prior month. Bolton experiences a subtle drop in temperature during the December nights, recording an average of 2.8°C (37°F).Humidity
With an average relative humidity of 89%, December is the most humid month.Rainfall
In Bolton, during December, the rain falls for 16.2 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, there are 184 rainfall days, and 389mm (15.31") of precipitation is accumulated.Snowfall
January through April and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 1.4 snowfall days, it receives 8mm (0.31") of snow. Throughout the year, in Bolton, there are 8.8 snowfall days, and 66mm (2.6") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 36min of daylight.On the first day of December, sunrise is at 8:03 am and sunset at 3:54 pm. On the last day of the month, sunrise is at 8:26 am and sunset at 3:59 pm GMT.
Sunshine
The average sunshine in December is 3.6h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
Is it cold in Bolton during December?
What is the most humid month in Bolton?
What is the average humidity in December in Bolton?
How many days does it rain in December in Bolton?
When does it start snowing in Bolton?
What is the month with the shortest days in Bolton?
What is the average length of the day in December in Bolton?
When is the sunrise / sunset in December in Bolton?
How many hours of sunshine does Bolton have in December?
What are the months with the lowest UV index in Bolton?
What is the UV index reading in December in Bolton?
Average temperature in December
Bolton, United Kingdom
- Average high temperature in December: 6.8°C
The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (12°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in December
Bolton, United Kingdom
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in December
Bolton, United Kingdom
- Average wind speed in December: 16.9km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is June (12.3km/h).
Average humidity in December
Bolton, United Kingdom
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Bolton, United Kingdom
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in December
Bolton, United Kingdom
- Average rainfall days in December: 16.2 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is April (12.3 days).
Average snowfall in December
Bolton, United Kingdom
- Average snowfall in December: 8mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Bolton, United Kingdom
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (3.3 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
Bolton, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 3h and 4min
The months with the most sunshine are April and May (Average sunshine: 7h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in December
Bolton, United Kingdom
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (7.6 days).
Average UV index in December
Bolton, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Bolton, United Kingdom
- Average cloud cover in December: 66
The months with the most cloud cover are January and December (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 53).
Average visibility in December
Bolton, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, August, October and November (9km).
The months with the lowest visibility are January, July, September and December (8km).
Bolton, United Kingdom
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