December weather forecast
Castleside, United Kingdom

December

Weather in December

December, the first month of the winter in Castleside, is also an icy month, with an average temperature varying between 5.7°C (42.3°F) and 1.9°C (35.4°F).

Temperature

December's presence records an average high-temperature of a cold 5.7°C (42.3°F), closely mirroring November's climate. Castleside's nighttime average temperature in December drops marginally from the daytime highs, settling at a still wintry 1.9°C (35.4°F).

Humidity

The months with the highest humidity in Castleside are January, November and December, with an average relative humidity of 89%.

Rainfall

In December, in Castleside, the rain falls for 13.5 days. Throughout December, 28mm (1.1") of precipitation is accumulated. In Castleside, during the entire year, the rain falls for 177.7 days and collects up to 407mm (16.02") of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In December, it is snowing for 3.4 days. Throughout December, 28mm (1.1") of snow is accumulated. In Castleside, United Kingdom, during the entire year, snow falls for 19.9 days and aggregates up to 150mm (5.91") of snow.

Daylight

The month with the shortest days in Castleside is December, with an average of 7h and 18min of daylight.
On the first day of December, sunrise is at 8:08 am and sunset at 3:45 pm. On the last day of the month, sunrise is at 8:31 am and sunset at 3:50 pm GMT.

Sunshine

The average sunshine in December is 4.7h.

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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.

Frequently asked questions

Is it cold in Castleside during December?
In December, in Castleside, the average high-temperature is 5.7°C (42.3°F), and the average low-temperature is 1.9°C (35.4°F).
What are the most humid months in Castleside?
The months with the highest humidity in Castleside, United Kingdom, are January, November and December, with an average relative humidity of 89%.
What is the average humidity in December in Castleside?
In December, the average relative humidity is 89%.
How many days does it rain in December in Castleside?
In Castleside, during December, the rain falls for 13.5 days and regularly aggregates up to 28mm (1.1") of precipitation.
How much does it snow in Castleside in December?
In Castleside, in December, during 3.4 snowfall days, 28mm (1.1") of snow is typically accumulated.
What is the month with the shortest days in Castleside?
December has the shortest days of the year in Castleside, United Kingdom, with an average of 7h and 18min of daylight.
What is the average length of the day in December in Castleside?
In December, the average day length in Castleside is 7h and 19min.
When is the sunrise / sunset in December in Castleside?
In December, on the first day of the month, sunrise is at 8:08 am and sunset at 3:45 pm. On the last day of the month, in Castleside, United Kingdom, sunrise is at 8:31 am and sunset at 3:50 pm GMT.
How long on average sun shines in December in Castleside?
The average sunshine duration in December is 4.7h.
What is the month with the lowest UV index in Castleside?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the UV index reading in December in Castleside?
The average daily maximum UV index in December in Castleside, United Kingdom, is 2. A UV Index of 2, and less, symbolizes a low health risk from 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
Castleside, United Kingdom
  • Average high temperature in December: 5.7°C

The warmest month (with the highest average high temperature) is July (17.7°C).
The month with the lowest average high temperature is January (5°C).

  • Average low temperature in December: 1.9°C

The month with the highest average low temperature is August (10.9°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).

Average pressure in December
Castleside, United Kingdom
  • Average pressure in December: 1009.9mbar

The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008mbar).

Average wind speed in December
Castleside, United Kingdom
  • Average wind speed in December: 19.2km/h

The windiest month (with the highest average wind speed) is January (19.3km/h).
The calmest month (with the lowest average wind speed) is June (12.6km/h).

Average humidity in December
Castleside, United Kingdom
  • Average humidity in December: 89%

The months with the highest relative humidity are January, November and December (89%).
The months with the lowest relative humidity are April and May (81%).

Average rainfall in December
Castleside, United Kingdom
  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is June (50mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days in December
Castleside, United Kingdom
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (10.6 days).

Average snowfall in December
Castleside, United Kingdom
  • Average snowfall in December: 28mm

The month with the highest snowfall is February (41mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in December
Castleside, United Kingdom
  • Average snowfall days in December: 3.4 days

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Castleside, United Kingdom
  • Average daylight in December: 7h and 2min

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 18min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are April, July and August (Average sunshine: 7h and 18min).
The months with the least sunshine are February and November (Average sunshine: 4h and 12min).

Average sunshine days in December
Castleside, United Kingdom
  • Average sunshine days in December: 13.1 days

The months with the most sunshine days are April and September (13.2 days).
The month with the least sunshine days is July (7.3 days).

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

Average cloud cover in December
Castleside, United Kingdom
  • Average cloud cover in December: 54

The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is April (Cloud cover 51).

Average visibility in December
Castleside, United Kingdom
  • Average visibility in December: 9km

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

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