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
Castledawson starts December with an average high-temperature of a still chilly 6.5°C (43.7°F), a minor shift from November's 8.5°C (47.3°F). The nights of December cool down to an average low of 2.6°C (36.7°F), subtly lower than daytime highs.Humidity
January and December, with an average relative humidity of 90%, are the most humid months in Castledawson.Rainfall
In December, in Castledawson, the rain falls for 11.2 days. Throughout December, 18mm (0.71") of precipitation is accumulated. In Castledawson, during the entire year, the rain falls for 149.6 days and collects up to 237mm (9.33") of precipitation.Snowfall
Months with snowfall in Castledawson are January through March, November and December. In Castledawson, in December, snow falls for 0.6 days, with typically accumulated 2mm (0.08") of snow. In Castledawson, during the entire year, snow falls for 8.2 days and aggregates up to 33mm (1.3") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 18min of daylight.On the first day of the month, sunrise is at 8:26 am and sunset at 4:04 pm. On the last day of December, sunrise is at 8:49 am and sunset at 4:09 pm GMT.
Sunshine
In December, the average sunshine is 3.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Castledawson. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is it in Castledawson in December?
What is the most humid month in Castledawson?
What is the average humidity in December in Castledawson?
How much does it rain in Castledawson in December?
How much does it snow in Castledawson in December?
What is the month with the shortest days in Castledawson?
What is the average length of the day in December in Castledawson?
What time are sunrise and sunset in December in Castledawson?
How many hours of sunshine does Castledawson have in December?
What is the month with the lowest UV index in Castledawson?
What is the UV index reading in December in Castledawson?
Average temperature in December
Castledawson, United Kingdom
- Average high temperature in December: 6.5°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 2.6°C
The months with the highest average low temperature are July and August (10.3°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in December
Castledawson, United Kingdom
- Average pressure in December: 1008.9mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1007mbar).
Average wind speed in December
Castledawson, United Kingdom
- Average wind speed in December: 19.2km/h
The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in December
Castledawson, United Kingdom
- Average humidity in December: 90%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in December
Castledawson, United Kingdom
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is June (31mm).
The driest month (with the least rainfall) is January (13mm).
Average rainfall days in December
Castledawson, United Kingdom
- Average rainfall days in December: 11.2 days
The months with the highest number of rainy days are June and July (15.3 days).
The month with the least rainy days is September (9.6 days).
Average snowfall in December
Castledawson, United Kingdom
- Average snowfall in December: 2mm
The months with the highest snowfall are February and March (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Castledawson, United Kingdom
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.8 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
Castledawson, 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: 3h and 5min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Castledawson, United Kingdom
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Castledawson, United Kingdom
- Average UV index in December: 2
The month with the highest UV index is June (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
Castledawson, United Kingdom
- Average cloud cover in December: 61
The months with the most cloud cover are July and August (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in December
Castledawson, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).
Castledawson, United Kingdom
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