January weather forecastMount Jackson, VA
January
Weather in January
January, the same as December, is an icy winter month in Mount Jackson, Virginia, with an average temperature ranging between max 37.9°F (3.3°C) and min 23°F (-5°C).Temperature
Mount Jackson witnesses the coldest weather in January, with temperatures averaging a high of 37.9°F (3.3°C) and a low of 23°F (-5°C).Humidity
January, April, June, July and November, with an average relative humidity of 75%, are the least humid months.Rainfall
The months with the least rainfall are January and November Rain falls for 8.3 days and accumulates 1.3" (33mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In Mount Jackson, during January, snow falls for 6.1 days and regularly aggregates up to 2.83" (72mm) of snow. Throughout the year, there are 20.9 snowfall days, and 12.52" (318mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 49min.On the first day of the month, sunrise is at 7:32 am and sunset at 5:03 pm. On the last day of January, sunrise is at 7:21 am and sunset at 5:34 pm EST.
Sunshine
In Mount Jackson, the average sunshine in January is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 2 in January leads to these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mount Jackson, VA
- Average high temperature in January: 37.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in January: 23°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in January
Mount Jackson, VA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
Mount Jackson, VA
- Average wind speed in January: 6.5mph
The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in January
Mount Jackson, VA
- Average humidity in January: 75%
The months with the highest relative humidity are September and October (79%).
The months with the lowest relative humidity are January, April, June, July and November (75%).
Average rainfall in January
Mount Jackson, VA
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is May (2.95").
The driest months (with the least rainfall) are January and November (1.3").
Average rainfall days in January
Mount Jackson, VA
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Mount Jackson, VA
- Average snowfall in January: 2.83"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Mount Jackson, VA
- Average snowfall days in January: 6.1 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mount Jackson, VA
- Average daylight in January: 9h and 48min
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 January: 5h and 12min
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 6min).
Average sunshine days in January
Mount Jackson, VA
- Average sunshine days in January: 18.4 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (11 days).
Average UV index in January
Mount Jackson, VA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Mount Jackson, VA
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Mount Jackson, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, April, June, July and November (6mi).
The months with the lowest visibility are March, May, August, September, October and December (5mi).
