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 brings a small shift in high-temperatures, falling from a moderate 57.2°F (14°C) in November to a frosty 49.6°F (9.8°C). In Hartfield, December is marked by an average low-temperature of 36.1°F (2.3°C).Humidity
With an average relative humidity of 79%, December is the most humid month.Rainfall
In Hartfield, in December, it is raining for 9.6 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, in Hartfield, Virginia, there are 132.5 rainfall days, and 15.47" (393mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Hartfield, during December, snow falls for 1.5 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, there are 8.3 snowfall days, and 2.17" (55mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of December in Hartfield, sunrise is at 7:02 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:57 pm EST.
Sunshine
The average sunshine in December in Hartfield, Virginia, is 5.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Hartfield. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What are December temperatures in Hartfield?
What is the most humid month in Hartfield?
What is the average humidity in December in Hartfield?
How many days does it rain in December in Hartfield?
How many days does it snow in December in Hartfield?
What is the month with the shortest days in Hartfield?
What is the average length of the day in December in Hartfield?
When are sunrise and sunset in December in Hartfield?
How many hours of sunshine does Hartfield have in December?
What are the months with the lowest UV index in Hartfield?
What is the UV index reading in December in Hartfield?
Average temperature in December
Hartfield, VA
- Average high temperature in December: 49.6°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
Hartfield, 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 (29.95"Hg).
Average wind speed in December
Hartfield, VA
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Hartfield, VA
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Hartfield, VA
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is August (1.85").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in December
Hartfield, VA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Hartfield, VA
- Average snowfall in December: 0.35"
The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hartfield, VA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.8 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
Hartfield, 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 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Hartfield, VA
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is May (14.5 days).
Average UV index in December
Hartfield, VA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Hartfield, VA
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Hartfield, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Hartfield, Virginia, USA
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