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
Henllan marks the start of December with an average high-temperature of a still chilly 7.2°C (45°F), hinting at a slight fluctuation from November's 9°C (48.2°F). In December, Henllan's nights cool slightly to a consistent average temperature of 3.6°C (38.5°F).Humidity
January, November and December, with an average relative humidity of 88%, are the most humid months.Rainfall
In Henllan, during December, the rain falls for 15.2 days and regularly aggregates up to 31mm (1.22") of precipitation. In Henllan, during the entire year, the rain falls for 176 days and collects up to 343mm (13.5") of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 3.5 days. Throughout December, 23mm (0.91") of snow is accumulated. In Henllan, during the entire year, snow falls for 19.4 days and aggregates up to 116mm (4.57") 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 8:05 am and sunset at 4:00 pm. On the last day of the month, sunrise is at 8:28 am and sunset at 4:05 pm GMT.
Sunshine
The average sunshine in December in Henllan is 3.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Henllan. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Henllan?
What are the most humid months in Henllan?
What is the average humidity in December in Henllan?
How much does it rain in Henllan in December?
How many days does it snow in December in Henllan?
What is the month with the shortest days in Henllan?
What is the average length of the day in December in Henllan?
What time are sunrise and sunset in December in Henllan?
How long on average sun shines in December in Henllan?
What are the months with the lowest UV index in Henllan?
What is the UV index intensity in December in Henllan?
Average temperature in December
Henllan, United Kingdom
- Average high temperature in December: 7.2°C
The warmest month (with the highest average high temperature) is July (17.5°C).
The months with the lowest average high temperature are January and February (6.3°C).
- Average low temperature in December: 3.6°C
The month with the highest average low temperature is August (11.8°C).
The coldest months (with the lowest average low temperature) are January and February (2.5°C).
Average pressure in December
Henllan, United Kingdom
- Average pressure in December: 1012mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in December
Henllan, United Kingdom
- Average wind speed in December: 19.5km/h
The windiest month (with the highest average wind speed) is December (19.5km/h).
The calmest month (with the lowest average wind speed) is June (12.4km/h).
Average humidity in December
Henllan, United Kingdom
- Average humidity in December: 88%
The months with the highest relative humidity are January, November and December (88%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in December
Henllan, United Kingdom
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is November (39mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Henllan, United Kingdom
- Average rainfall days in December: 15.2 days
The month with the highest number of rainy days is November (17.6 days).
The month with the least rainy days is February (11.7 days).
Average snowfall in December
Henllan, United Kingdom
- Average snowfall in December: 23mm
The month with the highest snowfall is January (35mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Henllan, United Kingdom
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Henllan, 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: 7h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 12min).
Average sunshine days in December
Henllan, United Kingdom
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is April (13.1 days).
The month with the least sunshine days is November (7.9 days).
Average UV index in December
Henllan, 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
Henllan, United Kingdom
- Average cloud cover in December: 66
The month with the most cloud cover is November (Cloud cover 68).
The months with the least cloud cover are April and May (Cloud cover 53).
Average visibility in December
Henllan, 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).
