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Weather in January in Connecticut

Planning a getaway to Connecticut this January and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What is the weather like in Connecticut in January?

Connecticut is a region in the United States of America. January in Connecticut generally has temperatures that range from very cold to cold, with moderate precipitation. January is a winter month.

Temperatures

During the day the temperature is very cold in Cornwall Bridge at 1°C and cold in Stamford at 4°C. As night falls, temperatures generally drop to -5°C in Stamford and -9°C in Cornwall Bridge. Typically, it's the chilliest month of the year. Making it a great time for staying indoors and enjoying the warmth. Make sure you're prepared by packing the right winter outfits.

Precipitation

In January, precipitation varies across different areas. From moderate snow/rainfall in Cornwall Bridge with an average of 77 mm to moderate snow/rainfall in Niantic with 99 mm.

Average sunshine

The city Stamford usually sees around 161 hours of sunlight, indicating a moderately sunny period.

To learn more about the conditions in specific areas of Connecticut in January, check out the map below. For more details on the yearly weather, visit our Connecticut climate page.

Where to go in Connecticut in January

Find more information for the most popular destinations in the Connecticut on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in January for the 5 most popular destinations in Connecticut?

Stamford

In January Stamford generally has low temperatures with maximum daytime temperatures around 4°C, minimum nighttime temperatures around -5°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Stamford
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
7°C 
-1°C 
141 hours 
115 mm 
12 days 
poor 
4°C 
-5°C 
161 hours 
86 mm 
12 days 
poor 
4°C 
-5°C 
162 hours 
86 mm 
10 days 
poor 
Climate in Stamford

Mystic

In January Mystic generally has low temperatures with maximum daytime temperatures around 4°C, minimum nighttime temperatures around -5°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Mystic
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
7°C 
-1°C 
147 hours 
127 mm 
12 days 
poor 
4°C 
-5°C 
170 hours 
96 mm 
12 days 
poor 
4°C 
-5°C 
173 hours 
97 mm 
11 days 
poor 
Climate in Mystic

Windsor Locks

In January Windsor Locks generally has low temperatures with maximum daytime temperatures around 2°C, minimum nighttime temperatures around -7°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Windsor Locks
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
6°C 
-3°C 
139 hours 
118 mm 
13 days 
poor 
2°C 
-7°C 
169 hours 
86 mm 
11 days 
poor 
3°C 
-7°C 
176 hours 
93 mm 
10 days 
poor 
Climate in Windsor Locks

Danbury

In January Danbury generally has low temperatures with maximum daytime temperatures around 2°C, minimum nighttime temperatures around -8°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Danbury
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
6°C 
-3°C 
129 mm 
13 days 
poor 
2°C 
-8°C 
94 mm 
13 days 
poor 
3°C 
-8°C 
93 mm 
10 days 
poor 
Climate in Danbury

Groton

In January Groton generally has low temperatures with maximum daytime temperatures around 4°C, minimum nighttime temperatures around -5°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Groton
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
7°C 
-1°C 
139 hours 
128 mm 
12 days 
poor 
4°C 
-5°C 
169 hours 
97 mm 
11 days 
poor 
4°C 
-5°C 
176 hours 
98 mm 
11 days 
poor 
Climate in Groton

Is your destination not in the list? Have a look at other destinations in Connecticut, in the United States of America.

Is January the best time to visit Connecticut?

In our view, January might not be the best time to travel to Connecticut with often poor weather in Stamford.

Generally speaking, May and September provide perfect weather in Stamford. The weather in January, February, March and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Connecticut. Interested in the weather conditions in a specific month? Select the month below.

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