January weather forecastCatlett, VA
January
Weather in January
January, like December, in Catlett, Virginia, is a wintry winter month, with an average temperature ranging between min 26.4°F (-3.1°C) and max 40.6°F (4.8°C).Temperature
January is the month when Catlett experiences its coldest temperatures, averaging a high of 40.6°F (4.8°C) and a low of 26.4°F (-3.1°C).Humidity
In Catlett, Virginia, the average relative humidity in January is 74%.Rainfall
In January, the rain falls for 9.5 days. Throughout January, 1.97" (50mm) of precipitation is accumulated. In Catlett, during the entire year, the rain falls for 157.5 days and collects up to 30.35" (771mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall in Catlett is January, when snow falls for 4.9 days and typically aggregates up to 3.7" (94mm) of snow.Daylight
In January, the average length of the day is 9h and 50min.On the first day of January in Catlett, sunrise is at 7:28 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:30 pm EST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 5.2h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. 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
Catlett, VA
- Average high temperature in January: 40.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in January: 26.4°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in January
Catlett, 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 (29.95"Hg).
Average wind speed in January
Catlett, VA
- Average wind speed in January: 6.5mph
The windiest months (with the highest average wind speed) are March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in January
Catlett, VA
- Average humidity in January: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in January
Catlett, VA
- Average rainfall in January: 1.97"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in January
Catlett, VA
- Average rainfall days in January: 9.5 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in January
Catlett, VA
- Average snowfall in January: 3.7"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Catlett, VA
- Average snowfall days in January: 4.9 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Catlett, 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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in January
Catlett, VA
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in January
Catlett, VA
- Average UV index in January: 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, November and December (UV index 2).
Average cloud cover in January
Catlett, 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
Catlett, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are May, September, October and December (5mi).
