December weather forecast
Calne, United Kingdom

December

Weather in December

December, the first month of the winter in Calne, is still a chilly month, with an average temperature fluctuating between 2.9°C (37.2°F) and 7.3°C (45.1°F).

Temperature

Calne indicates an average high-temperature of a still frosty 7.3°C (45.1°F) in December, showing minor variation from November's 9.7°C (49.5°F). December's average low-temperature is a wintry 2.9°C (37.2°F), reflecting a minor difference from the day's peak temperatures.

Humidity

With an average relative humidity of 91%, December is the most humid month.

Rainfall

In Calne, in December, during 13.9 rainfall days, 41mm (1.61") of precipitation is typically accumulated. Throughout the year, there are 178.2 rainfall days, and 397mm (15.63") of precipitation is accumulated.

Snowfall

Months with snowfall in Calne, United Kingdom, are January through March and December. December is the first month it typically snows. Throughout December, in the average 1.1 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, in Calne, there are 6.3 snowfall days, and 33mm (1.3") of snow is accumulated.

Daylight

December has the shortest days of the year in Calne, with an average of 7h and 54min of daylight.
On the first day of the month, sunrise is at 7:51 am and sunset at 4:02 pm. On the last day of December, in Calne, sunrise is at 8:13 am and sunset at 4:09 pm GMT.

Sunshine

The average sunshine in December in Calne is 3.8h.

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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

What are December temperatures in Calne?
The average high-temperature, in December, in Calne, is 7.3°C (45.1°F), while the average low-temperature is 2.9°C (37.2°F).
What is the most humid month in Calne?
December is the most humid month in Calne, with an average relative humidity of 91%.
What is the average humidity in December in Calne?
In December, the average relative humidity is 91%.
How many days does it rain in December in Calne?
In December, the rain falls for 13.9 days. Throughout December, 41mm (1.61") of precipitation is accumulated.
When does it start snowing in Calne?
December is the first month it typically snows in Calne. Throughout December, in the average 1.1 snowfall days, it receives 4mm (0.16") of snow.
What is the month with the shortest days in Calne?
With an average of 7h and 54min of daylight, December has the shortest days of the year.
What is the average length of the day in December in Calne?
The average day length in December in Calne is 7h and 56min.
What time are sunrise and sunset in December in Calne?
On the first day of December in Calne, United Kingdom, sunrise is at 7:51 am and sunset at 4:02 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 4:09 pm GMT.
How many hours of sunshine does Calne have in December?
The average sunshine duration in December in Calne, United Kingdom, is 3.8h.
When is the lowest UV index in Calne?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Calne.
What is the UV index intensity in December in Calne?
In Calne, United Kingdom, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Calne, United Kingdom
  • Average high temperature in December: 7.3°C

The warmest month (with the highest average high temperature) is July (20.6°C).
The month with the lowest average high temperature is January (6.3°C).

  • Average low temperature in December: 2.9°C

The month with the highest average low temperature is August (11.9°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).

Average pressure in December
Calne, United Kingdom
  • Average pressure in December: 1014.2mbar

The months with the highest atmospheric pressure are May and September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.2mbar).

Average wind speed in December
Calne, United Kingdom
  • Average wind speed in December: 17.7km/h

The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).

Average humidity in December
Calne, United Kingdom
  • Average humidity in December: 91%

The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are July and August (82%).

Average rainfall in December
Calne, United Kingdom
  • Average rainfall in December: 41mm

The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is September (23mm).

Average rainfall days in December
Calne, United Kingdom
  • Average rainfall days in December: 13.9 days

The month with the highest number of rainy days is July (19.4 days).
The months with the least rainy days are February and September (12.5 days).

Average snowfall in December
Calne, United Kingdom
  • Average snowfall in December: 4mm

The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Calne, United Kingdom
  • Average snowfall days in December: 1.1 days

The months with the highest number of snowfall days are January and February (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
Calne, United Kingdom
  • Average daylight in December: 7h and 5min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 7h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 24min).

Average sunshine days in December
Calne, United Kingdom
  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is July (8.5 days).

Average UV index in December
Calne, 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, November and December (UV index 2).

Average cloud cover in December
Calne, United Kingdom
  • Average cloud cover in December: 62

The month with the most cloud cover is November (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 55).

Average visibility in December
Calne, United Kingdom
  • Average visibility in December: 8km

The months with the highest visibility are February and March (9km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (8km).

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