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
The transition from November to December brings an average high-temperature of a still chilly 6.6°C (43.9°F), barely different from November's 8.5°C (47.3°F). An average low-temperature of 2.8°C (37°F) characterizes Llanuwchllyn's December nights.Humidity
The months with the highest humidity in Llanuwchllyn are January, November and December, with an average relative humidity of 91%.Rainfall
The month with the most rainfall in Llanuwchllyn is December, when the rain falls for 19.7 days and typically aggregates up to 80mm (3.15") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Llanuwchllyn, in December, snow falls for 3.2 days, with typically accumulated 34mm (1.34") of snow. In Llanuwchllyn, during the entire year, snow falls for 16.1 days and aggregates up to 170mm (6.69") 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 the month, sunrise is at 8:05 am and sunset at 4:02 pm. On the last day of December, sunrise is at 8:27 am and sunset at 4:08 pm GMT.
Sunshine
January, November and December, with an average of 3h of sunshine, are months with the least sunshine in Llanuwchllyn.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Llanuwchllyn in December?
What are the most humid months in Llanuwchllyn?
What is the average humidity in December in Llanuwchllyn?
What is the rainiest month in Llanuwchllyn?
How many days does it rain in December in Llanuwchllyn?
How much does it snow in Llanuwchllyn in December?
What is the month with the shortest days in Llanuwchllyn?
What is the average length of the day in December in Llanuwchllyn?
When are sunrise and sunset in December in Llanuwchllyn?
What is the month with the least sunshine in Llanuwchllyn?
How long on average sun shines in December in Llanuwchllyn?
What is the month with the lowest UV index in Llanuwchllyn?
What is the UV index reading in December in Llanuwchllyn?
Average temperature in December
Llanuwchllyn, United Kingdom
- Average high temperature in December: 6.6°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (10.4°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure in December
Llanuwchllyn, United Kingdom
- Average pressure in December: 1012.6mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in December
Llanuwchllyn, United Kingdom
- Average wind speed in December: 17.6km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is June (11.3km/h).
Average humidity in December
Llanuwchllyn, United Kingdom
- Average humidity in December: 91%
The months with the highest relative humidity are January, November and December (91%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in December
Llanuwchllyn, United Kingdom
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is December (80mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in December
Llanuwchllyn, United Kingdom
- Average rainfall days in December: 19.7 days
The month with the highest number of rainy days is August (22 days).
The month with the least rainy days is February (15.3 days).
Average snowfall in December
Llanuwchllyn, United Kingdom
- Average snowfall in December: 34mm
The month with the highest snowfall is February (55mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Llanuwchllyn, United Kingdom
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (4.9 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
Llanuwchllyn, 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: 3h and 0min
The month with the most sunshine is May (Average sunshine: 6h and 36min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 0min).
Average sunshine days in December
Llanuwchllyn, United Kingdom
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is March (10.6 days).
The month with the least sunshine days is August (5.1 days).
Average UV index in December
Llanuwchllyn, 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, April, November and December (UV index 2).
Average cloud cover in December
Llanuwchllyn, United Kingdom
- Average cloud cover in December: 71
The month with the most cloud cover is November (Cloud cover 72).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in December
Llanuwchllyn, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (8km).
The months with the lowest visibility are July, August and September (7km).
