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 move into December indicates a slight reduction in the average high-temperature, down from November's fresh 53.4°F (11.9°C) to a frosty 45.3°F (7.4°C). During the month of December, the temperature falls to an average of 31.1°F (-0.5°C).Humidity
The months with the highest humidity in Fairfield are May and December, with an average relative humidity of 78%.Rainfall
In Fairfield, during December, the rain falls for 9 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Fairfield, during the entire year, the rain falls for 146.4 days and collects up to 23.86" (606mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Fairfield, in December, during 2.5 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, there are 13.5 snowfall days, and 7.48" (190mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Fairfield.On the first day of the month, sunrise is at 7:14 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:32 am and sunset at 5:08 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Fairfield in December?
What are the most humid months?
What is the average humidity in December?
How many days 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 Fairfield 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 Fairfield have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Fairfield, VA
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Fairfield, VA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Fairfield, VA
- Average wind speed in December: 5.4mph
The windiest months (with the highest average wind speed) are February and April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Fairfield, VA
- Average humidity in December: 78%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Fairfield, VA
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Fairfield, VA
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in December
Fairfield, VA
- Average snowfall in December: 0.94"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Fairfield, VA
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (4 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
Fairfield, 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 2min
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 24min).
Average sunshine days in December
Fairfield, VA
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Fairfield, VA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Fairfield, VA
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in December
Fairfield, VA
- Average visibility in December: 5mi
The months with the highest visibility are June, July and November (6mi).
The months with the lowest visibility are January, February, March, April, May, August, September, October and December (5mi).
Fairfield, Virginia, USA
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