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 advent of December brings a subtle shift in temperature, with the average high moving from a moderate 55.4°F (13°C) in November to a frosty 47.3°F (8.5°C). In Hartwood, December nights cool down to an average of 33.4°F (0.8°C).Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In Hartwood, in December, during 10.5 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Hartwood, during the entire year, the rain falls for 153.8 days and collects up to 26.73" (679mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Hartwood, during December, snow falls for 2.3 days and regularly aggregates up to 1.06" (27mm) of snow. Throughout the year, there are 13.5 snowfall days, and 6.77" (172mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:59 pm EST.
Sunshine
With an average of 5.2h of sunshine, December has the least sunshine of the year.UV index
January, February 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
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?
What is the average length of the day in December in Hartwood?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Hartwood have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Hartwood, VA
- Average high temperature in December: 47.3°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Hartwood, VA
- Average pressure in December: 30.11"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
Hartwood, VA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Hartwood, 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 (71%).
Average rainfall in December
Hartwood, VA
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (1.65").
Average rainfall days in December
Hartwood, VA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Hartwood, VA
- Average snowfall in December: 1.06"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hartwood, VA
- Average snowfall days in December: 2.3 days
The months with the highest number of snowfall days are January and February (4.3 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
Hartwood, VA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Hartwood, VA
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in December
Hartwood, 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 and December (UV index 2).
Average cloud cover in December
Hartwood, VA
- Average cloud cover in December: 45
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
Hartwood, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).
Hartwood, Virginia, USA
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