January weather forecastKeller, VA
January
Weather in January
January, the same as December, in Keller, Virginia, is a frosty winter month, with an average temperature fluctuating between 43.5°F (6.4°C) and 35.6°F (2°C).Temperature
Keller records the coldest temperatures in January, averaging a high of 43.5°F (6.4°C) and a low of 35.6°F (2°C).Humidity
January and November, with an average relative humidity of 74%, are the least humid months.Rainfall
In Keller, Virginia, in January, it is raining for 9.3 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, there are 161.5 rainfall days, and 26.06" (662mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. In January, it is snowing for 1.4 days. Throughout January, 0.12" (3mm) of snow is accumulated. Throughout the year, in Keller, there are 5.6 snowfall days, and 0.87" (22mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 55min.On the first day of the month, sunrise is at 7:17 am and sunset at 4:55 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in January is 5.5h.UV index
The month with the lowest UV index in Keller is January, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Keller, VA
- Average high temperature in January: 43.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in January: 35.6°F
The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure in January
Keller, VA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Keller, VA
- Average wind speed in January: 13.4mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is August (9.5mph).
Average humidity in January
Keller, VA
- Average humidity in January: 74%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in January
Keller, VA
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is November (1.54").
Average rainfall days in January
Keller, VA
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in January
Keller, VA
- Average snowfall in January: 0.12"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Keller, VA
- Average snowfall days in January: 1.4 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Keller, VA
- Average daylight in January: 9h and 54min
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 36min).
- Average sunshine in January: 5h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in January
Keller, VA
- Average sunshine days in January: 17.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in January
Keller, VA
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in January
Keller, VA
- Average cloud cover in January: 41
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in January
Keller, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
