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
A subtle shift in Martinsville's weather is observed as November turns into December, with the average high temperature reducing from a moderate 56.3°F (13.5°C) to a chilly 48.6°F (9.2°C). During the nights in December, an average low-temperature of 34.2°F (1.2°C) is observed in Martinsville.Humidity
May and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Martinsville, in December, during 9.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Martinsville, during the entire year, the rain falls for 132.1 days and collects up to 19.96" (507mm) of precipitation.Snowfall
January through March, May, November and December are months with snowfall in Martinsville. December is the month with the most snowfall in Martinsville. Snow falls for 1.1 days and accumulates 2.05" (52mm) of snow.Daylight
The month with the shortest days in Martinsville is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:03 pm. On the last day of December, in Martinsville, sunrise is at 7:31 am and sunset at 5:13 pm EST.
Sunshine
January and December, with an average of 5.6h of sunshine, are months with the least sunshine in Martinsville.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What are the temperatures in Martinsville in December?
What is the most humid month in Martinsville?
What is the average humidity in December in Martinsville?
How many days does it rain in December in Martinsville?
What is the snowiest month in Martinsville?
How many days does it snow in December in Martinsville?
What is the month with the shortest days in Martinsville?
What is the average length of the day in December in Martinsville?
When are sunrise and sunset in December in Martinsville?
What is the month with the least sunshine in Martinsville?
How long on average sun shines in December in Martinsville?
What are the months with the lowest UV index in Martinsville?
How high is the UV index in December in Martinsville?
Average temperature in December
Martinsville, VA
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.1°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Martinsville, VA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Martinsville, VA
- Average wind speed in December: 6.2mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Martinsville, VA
- Average humidity in December: 76%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Martinsville, VA
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in December
Martinsville, VA
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7 days).
Average snowfall in December
Martinsville, VA
- Average snowfall in December: 2.05"
The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Martinsville, VA
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Martinsville, VA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Martinsville, VA
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.2 days).
Average UV index in December
Martinsville, 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, February and December (UV index 2).
Average cloud cover in December
Martinsville, VA
- Average cloud cover in December: 39
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Martinsville, 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).
Martinsville, Virginia, USA
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