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 advent notes a subtle adjustment in average high-temperature to a frosty 8.6°C (47.5°F) from November. Night temperatures in December exhibit a subtle decrease, settling at an average of 5.4°C (41.7°F).Humidity
The average relative humidity in December is 86%.Rainfall
In Trelech, in December, during 20.6 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, there are 210.2 rainfall days, and 515mm (20.28") of precipitation is accumulated.Snowfall
January, February, November and December are months with snowfall in Trelech. In December, in Trelech, it is snowing for 0.9 days. Throughout December, 5mm (0.2") of snow is accumulated. Throughout the year, in Trelech, there are 3.9 snowfall days, and 15mm (0.59") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of December, sunrise is at 8:04 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 8:25 am and sunset at 4:16 pm GMT.
Sunshine
The average sunshine in December is 3.7h.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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Trelech in December?
What is the average humidity in December in Trelech?
How much does it rain in Trelech in December?
How much does it snow in Trelech in December?
What is the month with the shortest days in Trelech?
How many hours of daylight does Trelech have in December?
When is the sunrise / sunset in December in Trelech?
How many hours of sunshine does Trelech have in December?
What is the month with the lowest UV index in Trelech?
How high is the UV index in December in Trelech?
Average temperature in December
Trelech, United Kingdom
- Average high temperature in December: 8.6°C
The warmest month (with the highest average high temperature) is July (17.9°C).
The month with the lowest average high temperature is February (7.6°C).
- Average low temperature in December: 5.4°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in December
Trelech, United Kingdom
- Average pressure in December: 1013.5mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1009.6mbar).
Average wind speed in December
Trelech, United Kingdom
- Average wind speed in December: 22.3km/h
The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is June (14.5km/h).
Average humidity in December
Trelech, United Kingdom
- Average humidity in December: 86%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in December
Trelech, United Kingdom
- Average rainfall in December: 59mm
The wettest month (with the highest rainfall) is November (60mm).
The driest month (with the least rainfall) is May (24mm).
Average rainfall days in December
Trelech, United Kingdom
- Average rainfall days in December: 20.6 days
The month with the highest number of rainy days is December (20.6 days).
The month with the least rainy days is April (13.5 days).
Average snowfall in December
Trelech, United Kingdom
- Average snowfall in December: 5mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Trelech, United Kingdom
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Trelech, 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 4min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Trelech, United Kingdom
- Average sunshine days in December: 6.6 days
The month with the most sunshine days is March (13.2 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in December
Trelech, 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
Trelech, United Kingdom
- Average cloud cover in December: 64
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and May (Cloud cover 48).
Average visibility in December
Trelech, 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).
