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
As December takes hold, the average high-temperature is a still frosty 7.2°C (45°F), nearly mirroring that of the previous month. A modest dip in temperatures to an average of 3.6°C (38.5°F) is observed throughout Trefnant's December nights.Humidity
January, November and December, with an average relative humidity of 88%, are the most humid months.Rainfall
In Trefnant, during December, the rain falls for 15.2 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, in Trefnant, there are 176 rainfall days, and 343mm (13.5") of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Trefnant. In Trefnant, in December, during 3.5 snowfall days, 23mm (0.91") of snow is typically accumulated. Throughout the year, there are 19.4 snowfall days, and 116mm (4.57") of snow is accumulated.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 8:05 am and sunset at 3:59 pm. On the last day of December, in Trefnant, sunrise is at 8:28 am and sunset at 4:05 pm GMT.
Sunshine
In Trefnant, 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 of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What are December temperatures in Trefnant?
What is the most humid month in Trefnant?
What is the average humidity in December in Trefnant?
How much does it rain in Trefnant in December?
How many days does it snow in December in Trefnant?
What is the month with the shortest days in Trefnant?
What is the average length of the day in December in Trefnant?
When are sunrise and sunset in December in Trefnant?
How long on average sun shines in December in Trefnant?
What is the month with the lowest UV index in Trefnant?
How high is the UV index in December in Trefnant?
Average temperature in December
Trefnant, United Kingdom
- Average high temperature in December: 7.2°C
The warmest month (with the highest average high temperature) is July (17.5°C).
The months with the lowest average high temperature are January and February (6.3°C).
- Average low temperature in December: 3.6°C
The month with the highest average low temperature is August (11.8°C).
The coldest months (with the lowest average low temperature) are January and February (2.5°C).
Average pressure in December
Trefnant, United Kingdom
- Average pressure in December: 1012mbar
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
Trefnant, United Kingdom
- Average wind speed in December: 19.5km/h
The windiest month (with the highest average wind speed) is December (19.5km/h).
The calmest month (with the lowest average wind speed) is June (12.4km/h).
Average humidity in December
Trefnant, United Kingdom
- Average humidity in December: 88%
The months with the highest relative humidity are January, November and December (88%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in December
Trefnant, United Kingdom
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is November (39mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Trefnant, United Kingdom
- Average rainfall days in December: 15.2 days
The month with the highest number of rainy days is November (17.6 days).
The month with the least rainy days is February (11.7 days).
Average snowfall in December
Trefnant, United Kingdom
- Average snowfall in December: 23mm
The month with the highest snowfall is January (35mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Trefnant, United Kingdom
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Trefnant, 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: 3h and 4min
The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 12min).
Average sunshine days in December
Trefnant, United Kingdom
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is April (13.1 days).
The month with the least sunshine days is November (7.9 days).
Average UV index in December
Trefnant, 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
Trefnant, United Kingdom
- Average cloud cover in December: 66
The month with the most cloud cover is November (Cloud cover 68).
The months with the least cloud cover are April and May (Cloud cover 53).
Average visibility in December
Trefnant, 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).
Trefnant, United Kingdom
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