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
December
Weather in December
Temperature
December's onset sees an average high-temperature of a still frosty 7.5°C (45.5°F), exhibiting a slight fluctuation from the previous month. During December, nights cool slightly to an average low of 3.8°C (38.8°F).Humidity
January, November and December, with an average relative humidity of 89%, are the most humid months.Rainfall
In Treherbert, in December, it is raining for 17.8 days, with typically 74mm (2.91") of accumulated precipitation. Throughout the year, there are 200.8 rainfall days, and 659mm (25.94") of precipitation is accumulated.Snowfall
Months with snowfall in Treherbert are January through April, November and December. In Treherbert, during December, snow falls for 2 days and regularly aggregates up to 19mm (0.75") of snow. Throughout the year, there are 13.7 snowfall days, and 124mm (4.88") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 7:58 am and sunset at 4:07 pm. On the last day of December, sunrise is at 8:20 am and sunset at 4:14 pm GMT.
Sunshine
January, February, November and December, with an average of 3.5h of sunshine, are months with the least sunshine.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 daily high UV index of 2 during December translates into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Treherbert?
What are the most humid months in Treherbert?
What is the average humidity in December in Treherbert?
How much does it rain in Treherbert in December?
How many days does it snow in December in Treherbert?
What is the month with the shortest days in Treherbert?
What is the average length of the day in December in Treherbert?
What time are sunrise and sunset in December in Treherbert?
What is the month with the least sunshine in Treherbert?
How many hours of sunshine does Treherbert have in December?
What is the month with the lowest UV index in Treherbert?
What is the UV index reading in December in Treherbert?
Average temperature in December
Treherbert, United Kingdom
- Average high temperature in December: 7.5°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (6.6°C).
- Average low temperature in December: 3.8°C
The month with the highest average low temperature is August (12°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).
Average pressure in December
Treherbert, United Kingdom
- Average pressure in December: 1013.8mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in December
Treherbert, United Kingdom
- Average wind speed in December: 20.6km/h
The windiest month (with the highest average wind speed) is February (20.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.2km/h).
Average humidity in December
Treherbert, 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 (83%).
Average rainfall in December
Treherbert, United Kingdom
- Average rainfall in December: 74mm
The wettest month (with the highest rainfall) is November (81mm).
The driest month (with the least rainfall) is May (34mm).
Average rainfall days in December
Treherbert, United Kingdom
- Average rainfall days in December: 17.8 days
The months with the highest number of rainy days are August and November (19.4 days).
The month with the least rainy days is February (13.3 days).
Average snowfall in December
Treherbert, United Kingdom
- Average snowfall in December: 19mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Treherbert, United Kingdom
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (4.2 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
Treherbert, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 3min
The months with the most sunshine are April and May (Average sunshine: 7h and 24min).
The months with the least sunshine are January, February, November and December (Average sunshine: 3h and 30min).
Average sunshine days in December
Treherbert, United Kingdom
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is April (12.9 days).
The month with the least sunshine days is November (7.2 days).
Average UV index in December
Treherbert, 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
Treherbert, United Kingdom
- Average cloud cover in December: 66
The month with the most cloud cover is November (Cloud cover 67).
The months with the least cloud cover are April and May (Cloud cover 52).
Average visibility in December
Treherbert, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (9km).
The months with the lowest visibility are July, August and September (8km).
