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
Weather in December
Temperature
The onset of December results in a small decrease in the average high-temperature, moderately receding from a mild 57.6°F (14.2°C) in November to a frosty 49.5°F (9.7°C). In Chester, the average nighttime temperature during December is a wintry 35.4°F (1.9°C).Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In December, in Chester, the rain falls for 9.6 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Chester, during the entire year, the rain falls for 143.2 days and collects up to 22.36" (568mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 1.2 days. Throughout December, 1.06" (27mm) of snow is accumulated. Throughout the year, in Chester, Virginia, there are 8.7 snowfall days, and 4.41" (112mm) of snow is accumulated.Daylight
December has the shortest days of the year in Chester, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:23 am and sunset at 5:02 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.2h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Chester have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Chester have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Chester, VA
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in December
Chester, VA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Chester, VA
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Chester, VA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (68%).
Average rainfall in December
Chester, VA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Chester, VA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Chester, VA
- Average snowfall in December: 1.06"
The months with the highest snowfall are February and March (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Chester, VA
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (3.2 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
Chester, VA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Chester, VA
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
Chester, VA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Chester, VA
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Chester, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Chester, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location