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
December sees a slight reduction in average high-temperature, with a shift from a moderate 56.8°F (13.8°C) in November to a chilly 49.5°F (9.7°C). An average low-temperature of 35.1°F (1.7°C) is recorded during the nights in December.Humidity
The most humid month is December, with an average relative humidity of 78%.Rainfall
In Blackstone, Virginia, in December, it is raining for 10.5 days, with typically 2.36" (60mm) of accumulated precipitation. In Blackstone, during the entire year, the rain falls for 153.1 days and collects up to 28.7" (729mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Blackstone, during December, snow falls for 1.3 days and regularly aggregates up to 1.65" (42mm) of snow. In Blackstone, during the entire year, snow falls for 10.5 days and aggregates up to 8.23" (209mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year in Blackstone.On the first day of the month, sunrise is at 7:07 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:05 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.3h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What are December temperatures in Blackstone?
What is the most humid month in Blackstone?
What is the average humidity in December in Blackstone?
How much does it rain in Blackstone in December?
How much does it snow in Blackstone in December?
What is the month with the shortest days in Blackstone?
What is the average length of the day in December in Blackstone?
When are sunrise and sunset in December in Blackstone?
What is the month with the least sunshine in Blackstone?
How long on average sun shines in December in Blackstone?
When is the lowest UV index in Blackstone?
How high is the UV index in December in Blackstone?
Average temperature in December
Blackstone, VA
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 35.1°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Blackstone, 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 (29.96"Hg).
Average wind speed in December
Blackstone, 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 (5.2mph).
Average humidity in December
Blackstone, 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
Blackstone, VA
- Average rainfall in December: 2.36"
The wettest months (with the highest rainfall) are March, May and November (2.68").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Blackstone, 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 January (9.3 days).
Average snowfall in December
Blackstone, VA
- Average snowfall in December: 1.65"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Blackstone, VA
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (3.5 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
Blackstone, 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 42min).
- 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 December (Average sunshine: 5h and 18min).
Average sunshine days in December
Blackstone, VA
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Blackstone, 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
Blackstone, VA
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Blackstone, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Blackstone, Virginia, USA
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