January weather forecastBrooklyn, CT
January
Weather in January
January, like December, in Brooklyn, Connecticut, is a wintry winter month, with an average temperature ranging between min 21.6°F (-5.8°C) and max 33.4°F (0.8°C).Temperature
During the coldest month, January, temperatures average a high of 33.4°F (0.8°C) and a low of 21.6°F (-5.8°C).Humidity
In Brooklyn, Connecticut, the average relative humidity in January is 77%.Rainfall
In January, the rain falls for 8.3 days. Throughout January, 2.52" (64mm) of precipitation is accumulated. In Brooklyn, Connecticut, during the entire year, the rain falls for 163 days and collects up to 33.86" (860mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Brooklyn, in January, during 7.8 snowfall days, 2.91" (74mm) of snow is typically accumulated. In Brooklyn, during the entire year, snow falls for 30.6 days and aggregates up to 14.02" (356mm) of snow.Daylight
The average length of the day in January in Brooklyn, Connecticut, is 9h and 33min.On the first day of the month, sunrise is at 7:15 am and sunset at 4:27 pm. On the last day of January, in Brooklyn, sunrise is at 7:01 am and sunset at 5:01 pm EST.
Sunshine
In January, the average sunshine is 5h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. 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: The maximum daily UV index, 2 in January, converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Brooklyn, CT
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in January
Brooklyn, CT
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Brooklyn, CT
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in January
Brooklyn, CT
- Average humidity in January: 77%
The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Brooklyn, CT
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in January
Brooklyn, CT
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Brooklyn, CT
- Average snowfall in January: 2.91"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Brooklyn, CT
- Average snowfall days in January: 7.8 days
The month with the highest number of snowfall days is January (7.8 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
Brooklyn, CT
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 5h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Brooklyn, CT
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in January
Brooklyn, CT
- Average UV index in January: 2
The months with the highest UV index are June, July and August (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
Brooklyn, CT
- Average cloud cover in January: 45
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Brooklyn, CT
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).





