Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With average high and low temperatures of 44.1°F (6.7°C) and 28.8°F (-1.8°C) respectively, January is Martinsville's coldest month.Humidity
In January, the average relative humidity is 72%.Rainfall
In Martinsville, in January, it is raining for 8.5 days, with typically 1.54" (39mm) of accumulated precipitation. In Martinsville, during the entire year, the rain falls for 132.1 days and collects up to 19.96" (507mm) of precipitation.Snowfall
Months with snowfall are January through March, May, November and December. In January, it is snowing for 2.3 days. Throughout January, 1.06" (27mm) of snow is accumulated. Throughout the year, there are 8 snowfall days, and 6.06" (154mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 59min.On the first day of the month, sunrise is at 7:31 am and sunset at 5:14 pm. On the last day of January, sunrise is at 7:22 am and sunset at 5:43 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.6h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Martinsville have in January?
When is the sunrise / sunset in January in Martinsville?
What are the months with the least sunshine?
How many hours of sunshine does Martinsville have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Martinsville, VA
- Average high temperature in January: 44.1°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 January: 28.8°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 January
Martinsville, VA
- Average pressure in January: 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 January
Martinsville, VA
- Average wind speed in January: 6.8mph
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 January
Martinsville, VA
- Average humidity in January: 72%
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 January
Martinsville, VA
- Average rainfall in January: 1.54"
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 January
Martinsville, VA
- Average rainfall days in January: 8.5 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 January
Martinsville, VA
- Average snowfall in January: 1.06"
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 January
Martinsville, VA
- Average snowfall days in January: 2.3 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 January /
Average sunshine in January
Martinsville, VA
- Average daylight in January: 10h and 0min
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 January: 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 January
Martinsville, VA
- Average sunshine days in January: 19.9 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 January
Martinsville, VA
- Average UV index in January: 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 January
Martinsville, VA
- Average cloud cover in January: 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 January
Martinsville, VA
- Average visibility in January: 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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