January weather forecastNewtown, CT
January
Weather in January
Expect to bundle up in Newtown, Connecticut during January when it holds the title of the coldest month of the year. With temperatures dipping as low as 22.6°F (-5.2°C), residents experience substantial snowfall reaching 3.5" (89mm). The daylight is limited, further enhancing the winter experience, while the sun occasionally peeks from behind the cloudy skies. Snowflakes are often seen dancing with the wind in the air, painting the city in a blanket of white. The early part of the year brings with it a calm beauty that is quintessential of New England winters.Temperature
Temperature records in Newtown mark January as the coldest month, with highs averaging 33.4°F (0.8°C) and lows at 22.6°F (-5.2°C).Humidity
In January, the average relative humidity in Newtown is 76%.Rainfall
The months with the least rainfall in Newtown, Connecticut, are January and September Rain falls for 9.1 days and accumulates 2.4" (61mm) of rain.Snowfall
January through May, October through December are months with snowfall. In Newtown, during January, snow falls for 9.2 days and regularly aggregates up to 3.5" (89mm) of snow. Throughout the year, in Newtown, there are 34.5 snowfall days, and 17.01" (432mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 35min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:34 pm. On the last day of January, in Newtown, sunrise is at 7:05 am and sunset at 5:07 pm EST.
Sunshine
In Newtown, the average sunshine in January is 5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in January translates into these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Caution! The reflection of snow can nearly 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
Newtown, CT
- Average high temperature in January: 33.4°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 (33.4°F).
- Average low temperature in January: 22.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in January
Newtown, 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
Newtown, CT
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Newtown, CT
- Average humidity in January: 76%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Newtown, CT
- Average rainfall in January: 2.4"
The wettest month (with the highest rainfall) is December (4.02").
The driest months (with the least rainfall) are January and September (2.4").
Average rainfall days in January
Newtown, CT
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
Newtown, CT
- Average snowfall in January: 3.5"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Newtown, CT
- Average snowfall days in January: 9.2 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Newtown, 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: 5h and 0min
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
Newtown, CT
- Average sunshine days in January: 16.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in January
Newtown, 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
Newtown, CT
- Average cloud cover in January: 46
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Newtown, CT
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
