December weather forecastHarrietsham, United Kingdom
December
Weather in December
The first month of the winter, December, is still a chilly month in Harrietsham, United Kingdom, with an average temperature varying between 4.8°C (40.6°F) and 8.4°C (47.1°F).Temperature
December's arrival brings an average high-temperature of a chilly 8.4°C (47.1°F), slightly deviating from November's 10.7°C (51.3°F). Harrietsham maintains an average of approximately a cold 4.8°C (40.6°F) during December nights, with only a minimal decrease from the daytime temperature.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 87%.Rainfall
The month with the most rainfall is December, when the rain falls for 14.7 days and typically aggregates up to 42mm (1.65") of precipitation.Snowfall
January through April, November and December are months with snowfall in Harrietsham. In Harrietsham, in December, snow falls for 2 days, with typically accumulated 16mm (0.63") of snow. Throughout the year, in Harrietsham, there are 9.9 snowfall days, and 55mm (2.17") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 0min of daylight.On the first day of the month, sunrise is at 7:40 am and sunset at 3:52 pm. On the last day of December, in Harrietsham, sunrise is at 8:01 am and sunset at 3:59 pm GMT.
Sunshine
In December, the average sunshine in Harrietsham, United Kingdom, is 4.4h.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 unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. 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
Average temperature in December
Harrietsham, United Kingdom
- Average high temperature in December: 8.4°C
The warmest month (with the highest average high temperature) is August (20.7°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in December: 4.8°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in December
Harrietsham, United Kingdom
- Average pressure in December: 1015mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in December
Harrietsham, United Kingdom
- Average wind speed in December: 21.2km/h
The windiest month (with the highest average wind speed) is December (21.2km/h).
The calmest month (with the lowest average wind speed) is July (14.9km/h).
Average humidity in December
Harrietsham, United Kingdom
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Harrietsham, United Kingdom
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Harrietsham, United Kingdom
- Average rainfall days in December: 14.7 days
The month with the highest number of rainy days is November (16.4 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in December
Harrietsham, United Kingdom
- Average snowfall in December: 16mm
The month with the highest snowfall is February (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Harrietsham, United Kingdom
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (3.4 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
Harrietsham, United Kingdom
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Harrietsham, United Kingdom
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in December
Harrietsham, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Harrietsham, United Kingdom
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in December
Harrietsham, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).
