January weather forecastNiantic, CT
January
Weather in January
Niantic, Connecticut experiences chilly weather in January, dominated by cold, crisp winds. Cloud coverage is common, contributing to a noticeable reduction in daylight hours. It isn't unusual to witness snowfall at this time, painting the landscape a gleaming white. January is typically characterized by a brisk wind blowing at an average of 11.9mph (19.2km/h). With the relative humidity of 74%, the cold factor becomes quite prominent.Temperature
The coldest month is January, with an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.2°F (-3.2°C).Humidity
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 74%.Rainfall
In Niantic, in January, during 10.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Niantic, during the entire year, the rain falls for 159.8 days and collects up to 33.07" (840mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Niantic, during January, snow falls for 5.9 days and regularly aggregates up to 1.81" (46mm) of snow. In Niantic, during the entire year, snow falls for 24 days and aggregates up to 7.68" (195mm) of snow.Ocean temperature
In January, the average ocean temperature is 41.9°F (5.5°C).Note: Swimming in 41.9°F (5.5°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In January, the average length of the day is 9h and 36min.On the first day of January, sunrise is at 7:14 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:03 pm EST.
Sunshine
The average sunshine in January is 5.2h.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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Niantic, CT
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 26.2°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in January
Niantic, CT
- Average pressure in January: 30.03"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
Niantic, CT
- Average wind speed in January: 11.9mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in January
Niantic, CT
- Average humidity in January: 74%
The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in January
Niantic, CT
- Average rainfall in January: 2.64"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in January
Niantic, CT
- Average rainfall days in January: 10.8 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in January
Niantic, CT
- Average snowfall in January: 1.81"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Niantic, CT
- Average snowfall days in January: 5.9 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in January
Niantic, CT
- Average sea temperature in January: 41.9°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in January /
Average sunshine in January
Niantic, 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 18min).
- Average sunshine in January: 5h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in January
Niantic, CT
- Average sunshine days in January: 15.1 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in January
Niantic, 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
Niantic, CT
- Average cloud cover in January: 45
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Niantic, CT
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





