January weather forecastCollinsville, CT
January
Weather in January
January, like December, in Collinsville, Connecticut, is another cold winter month, with an average temperature varying between 32°F (0°C) and 20.1°F (-6.6°C).Temperature
In Collinsville, the lowest average temperatures are observed in January, with a high of 32°F (0°C) and a low of 20.1°F (-6.6°C).Humidity
In Collinsville, the average relative humidity in January is 77%.Rainfall
In January, in Collinsville, the rain falls for 9.4 days. Throughout January, 2.32" (59mm) of precipitation is accumulated. In Collinsville, during the entire year, the rain falls for 159.6 days and collects up to 31.97" (812mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 8.2 days. Throughout January, 3.74" (95mm) of snow is accumulated. In Collinsville, during the entire year, snow falls for 33.1 days and aggregates up to 18.39" (467mm) of snow.Daylight
In Collinsville, the average length of the day in January is 9h and 33min.On the first day of January in Collinsville, sunrise is at 7:19 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:04 pm EST.
Sunshine
In January, the average sunshine in Collinsville, Connecticut, is 4.9h.UV index
The months with the lowest UV index in Collinsville are January through March, 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 average individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Collinsville, CT
- Average high temperature in January: 32°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in January: 20.1°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 (20.1°F).
Average pressure in January
Collinsville, CT
- Average pressure in January: 30.03"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
Collinsville, CT
- Average wind speed in January: 8.3mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in January
Collinsville, CT
- Average humidity in January: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
Collinsville, CT
- Average rainfall in January: 2.32"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in January
Collinsville, CT
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in January
Collinsville, CT
- Average snowfall in January: 3.74"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Collinsville, CT
- Average snowfall days in January: 8.2 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Collinsville, 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: 4h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Collinsville, CT
- Average sunshine days in January: 17.1 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in January
Collinsville, CT
- 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, March, November and December (UV index 2).
Average cloud cover in January
Collinsville, CT
- Average cloud cover in January: 46
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Collinsville, CT
- Average visibility in January: 5mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).





