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
The transition from November to December sees average high-temperatures adjusting to a still chilly 6.6°C (43.9°F), from a not significantly different 8.5°C (47.3°F). In Trawsfynydd, a slight decrease from the daytime peak is noted during the month of December, with an average low-temperature of 3°C (37.4°F).Humidity
January and December, with an average relative humidity of 91%, are the most humid months.Rainfall
December is the month with the most rainfall. Rain falls for 20.8 days and accumulates 103mm (4.06") of precipitation.Snowfall
Months with snowfall in Trawsfynydd are January through April, November and December. In December, it is snowing for 3.9 days. Throughout December, 46mm (1.81") of snow is accumulated. In Trawsfynydd, during the entire year, snow falls for 22.5 days and aggregates up to 260mm (10.24") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 42min of daylight.On the first day of December in Trawsfynydd, sunrise is at 8:06 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 8:28 am and sunset at 4:09 pm GMT.
Sunshine
December has the least sunshine of the year in Trawsfynydd, with an average of 2.5h of sunshine.UV index
January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold is December in Trawsfynydd?
What are the most humid months in Trawsfynydd?
What is the average humidity in December in Trawsfynydd?
What is the rainiest month in Trawsfynydd?
How many days does it rain in December in Trawsfynydd?
How much does it snow in Trawsfynydd in December?
What is the month with the shortest days in Trawsfynydd?
How many hours of daylight does Trawsfynydd have in December?
What time are sunrise and sunset in December in Trawsfynydd?
What is the month with the least sunshine in Trawsfynydd?
How long on average sun shines in December in Trawsfynydd?
What are the months with the lowest UV index in Trawsfynydd?
What is the UV index reading in December in Trawsfynydd?
Average temperature in December
Trawsfynydd, United Kingdom
- Average high temperature in December: 6.6°C
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average pressure in December
Trawsfynydd, United Kingdom
- Average pressure in December: 1012.3mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in December
Trawsfynydd, United Kingdom
- Average wind speed in December: 17.8km/h
The windiest month (with the highest average wind speed) is December (17.8km/h).
The calmest month (with the lowest average wind speed) is June (11.2km/h).
Average humidity in December
Trawsfynydd, United Kingdom
- Average humidity in December: 91%
The months with the highest relative humidity are January and December (91%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in December
Trawsfynydd, United Kingdom
- Average rainfall in December: 103mm
The wettest month (with the highest rainfall) is December (103mm).
The driest months (with the least rainfall) are April and May (52mm).
Average rainfall days in December
Trawsfynydd, United Kingdom
- Average rainfall days in December: 20.8 days
The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in December
Trawsfynydd, United Kingdom
- Average snowfall in December: 46mm
The month with the highest snowfall is January (70mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Trawsfynydd, United Kingdom
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Trawsfynydd, United Kingdom
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 2h and 3min
The months with the most sunshine are May and June (Average sunshine: 6h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Trawsfynydd, United Kingdom
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is March (10.8 days).
The month with the least sunshine days is August (5.9 days).
Average UV index in December
Trawsfynydd, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in December
Trawsfynydd, United Kingdom
- Average cloud cover in December: 76
The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is April (Cloud cover 60).
Average visibility in December
Trawsfynydd, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (8km).
The months with the lowest visibility are August and September (7km).
Trawsfynydd, United Kingdom
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