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
November's transformation into December witnesses an average high-temperature of a chilly 8.9°C (48°F), noting a minor change from the preceding month. Night temperatures during December experience a slight downturn, averaging 6.8°C (44.2°F).Humidity
The average relative humidity in December is 81%.Rainfall
In Llanfechell, during December, the rain falls for 19.5 days and regularly aggregates up to 48mm (1.89") of precipitation. Throughout the year, there are 196.7 rainfall days, and 430mm (16.93") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 1.1 days. Throughout December, 5mm (0.2") of snow is accumulated. In Llanfechell, during the entire year, snow falls for 5.5 days and aggregates up to 29mm (1.14") of snow.Daylight
December has the shortest days of the year, with an average of 7h and 36min of daylight.On the first day of December, sunrise is at 8:10 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 8:33 am and sunset at 4:08 pm GMT.
Sunshine
With an average of 3.7h of sunshine, December has the least sunshine of the year in Llanfechell.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Llanfechell?
What is the average humidity in December in Llanfechell?
How much does it rain in Llanfechell in December?
How much does it snow in Llanfechell in December?
What is the month with the shortest days in Llanfechell?
How many hours of daylight does Llanfechell have in December?
When are sunrise and sunset in December in Llanfechell?
What is the month with the least sunshine in Llanfechell?
How many hours of sunshine does Llanfechell have in December?
What are the months with the lowest UV index in Llanfechell?
What is the UV index reading in December in Llanfechell?
Average temperature in December
Llanfechell, United Kingdom
- Average high temperature in December: 8.9°C
The warmest month (with the highest average high temperature) is August (16.6°C).
The month with the lowest average high temperature is February (7.3°C).
- Average low temperature in December: 6.8°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in December
Llanfechell, United Kingdom
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.7mbar).
Average wind speed in December
Llanfechell, United Kingdom
- Average wind speed in December: 28.6km/h
The windiest month (with the highest average wind speed) is December (28.6km/h).
The calmest month (with the lowest average wind speed) is June (17.2km/h).
Average humidity in December
Llanfechell, United Kingdom
- Average humidity in December: 81%
The months with the highest relative humidity are July and August (84%).
The months with the lowest relative humidity are April and November (80%).
Average rainfall in December
Llanfechell, United Kingdom
- Average rainfall in December: 48mm
The wettest month (with the highest rainfall) is November (51mm).
The driest months (with the least rainfall) are April and May (21mm).
Average rainfall days in December
Llanfechell, United Kingdom
- Average rainfall days in December: 19.5 days
The month with the highest number of rainy days is August (19.9 days).
The month with the least rainy days is June (13.2 days).
Average snowfall in December
Llanfechell, United Kingdom
- Average snowfall in December: 5mm
The month with the highest snowfall is January (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Llanfechell, United Kingdom
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.1 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
Llanfechell, 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: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in December
Llanfechell, United Kingdom
- Average sunshine days in December: 6.2 days
The month with the most sunshine days is June (14.7 days).
The month with the least sunshine days is December (6.2 days).
Average UV index in December
Llanfechell, 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, November and December (UV index 2).
Average cloud cover in December
Llanfechell, United Kingdom
- Average cloud cover in December: 65
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is May (Cloud cover 46).
Average visibility in December
Llanfechell, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
