January weather forecastWashington, CT
January
Weather in January
January, the same as December, in Washington, Connecticut, is another subzero cold winter month, with an average temperature fluctuating between 31.5°F (-0.3°C) and 19.8°F (-6.8°C).Temperature
January, having an average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 19.8°F (-6.8°C), is the coldest month.Humidity
The average relative humidity in January is 79%.Rainfall
January is the month with the least rainfall. Rain falls for 7.7 days and accumulates 2.13" (54mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Washington. In Washington, during January, snow falls for 8.6 days and regularly aggregates up to 4.37" (111mm) of snow. In Washington, during the entire year, snow falls for 38.3 days and aggregates up to 19.84" (504mm) of snow.Daylight
The average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:33 pm. On the last day of January, sunrise is at 7:06 am and sunset at 5:06 pm EST.
Sunshine
The average sunshine in January in Washington is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Washington. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Washington, CT
- Average high temperature in January: 31.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in January: 19.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in January
Washington, CT
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Washington, CT
- Average wind speed in January: 7.8mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Washington, CT
- Average humidity in January: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Washington, CT
- Average rainfall in January: 2.13"
The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in January
Washington, CT
- Average rainfall days in January: 7.7 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in January
Washington, CT
- Average snowfall in January: 4.37"
The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Washington, CT
- Average snowfall days in January: 8.6 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Washington, CT
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in January
Washington, CT
- Average sunshine days in January: 17.5 days
The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in January
Washington, CT
- Average UV index in January: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Washington, CT
- Average cloud cover in January: 48
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in January
Washington, CT
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
