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 start of December sees the average high-temperature at a chilly 8°C (46.4°F), showing little difference from November's 10.5°C (50.9°F). The December average low temperature, marginally lower than the daytime high, records at a wintry 3.8°C (38.8°F).Humidity
The most humid month is December, with an average relative humidity of 89%.Rainfall
December is the month with the most rainfall. Rain falls for 14.1 days and accumulates 45mm (1.77") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Forest Row, during December, snow falls for 1.8 days and regularly aggregates up to 9mm (0.35") of snow. Throughout the year, in Forest Row, United Kingdom, there are 10.4 snowfall days, and 54mm (2.13") 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 December in Forest Row, sunrise is at 7:41 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 4:02 pm GMT.
Sunshine
In December, the average sunshine is 4.1h.UV index
January through March, 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 low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Forest Row?
What is the most humid month in Forest Row?
What is the average humidity in December in Forest Row?
What is the wettest month in Forest Row?
How much does it rain in Forest Row in December?
How many days does it snow in December in Forest Row?
What is the month with the shortest days in Forest Row?
What is the average length of the day in December in Forest Row?
When are sunrise and sunset in December in Forest Row?
How long on average sun shines in December in Forest Row?
When is the lowest UV index in Forest Row?
How high is the UV index in December in Forest Row?
Average temperature in December
Forest Row, United Kingdom
- Average high temperature in December: 8°C
The warmest months (with the highest average high temperature) are July and August (21.3°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in December: 3.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in December
Forest Row, United Kingdom
- Average pressure in December: 1015mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in December
Forest Row, United Kingdom
- Average wind speed in December: 17.9km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest months (with the lowest average wind speed) are July, August and September (13.4km/h).
Average humidity in December
Forest Row, United Kingdom
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Forest Row, United Kingdom
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is December (45mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Forest Row, United Kingdom
- Average rainfall days in December: 14.1 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in December
Forest Row, United Kingdom
- Average snowfall in December: 9mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Forest Row, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.9 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
Forest Row, 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 1min
The month with the most sunshine is July (Average sunshine: 8h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Forest Row, United Kingdom
- Average sunshine days in December: 14 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in December
Forest Row, 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, March, November and December (UV index 2).
Average cloud cover in December
Forest Row, United Kingdom
- Average cloud cover in December: 60
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 47).
Average visibility in December
Forest Row, 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).
