January weather forecastStamford, CT
January
Weather in January
In Stamford, Connecticut, the beginning of the year brings with it weather conditions that are characterized by their coolness. Compared to its slightly warmer predecessor, December, average high temperature drops from 41.9°F (5.5°C) to 36°F (2.2°C). Sunshine is rather limited as well, although, at the turn of a new year, residents can expect longer daylight hours. The month also affords outdoor enthusiasts the rare opportunity to experience snowfall. January wraps up, leaving in its trail, lower sea temperatures and windy conditions.Temperature
January, with average temperatures reaching a high of 36°F (2.2°C) and a low of 26.6°F (-3°C), is the coldest month.Humidity
The average relative humidity in January is 74%.Rainfall
January and February are months with the least rain when the rain falls for 8.3 days and typically aggregates up to 2.36" (60mm) of rain.Snowfall
Months with snowfall are January through April, November and December. In Stamford, during January, snow falls for 6.3 days and regularly aggregates up to 1.81" (46mm) of snow. In Stamford, during the entire year, snow falls for 23.2 days and aggregates up to 8.66" (220mm) of snow.Ocean temperature
In Stamford, the average seawater temperature in January is 41.7°F (5.4°C).Note: Swimming in 41.7°F (5.4°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.
Daylight
The average length of the day in January is 9h and 37min.On the first day of January, sunrise is at 7:19 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:09 pm EST.
Sunshine
In Stamford, 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 in Stamford. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 2 in January transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Stamford, CT
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in January: 26.6°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in January
Stamford, CT
- Average pressure in January: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Stamford, CT
- Average wind speed in January: 10.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Stamford, CT
- Average humidity in January: 74%
The months with the highest relative humidity are February, May, June and December (75%).
The months with the lowest relative humidity are April, August and November (72%).
Average rainfall in January
Stamford, CT
- Average rainfall in January: 2.36"
The wettest month (with the highest rainfall) is July (4.25").
The driest months (with the least rainfall) are January and February (2.36").
Average rainfall days in January
Stamford, CT
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in January
Stamford, CT
- Average snowfall in January: 1.81"
The months with the highest snowfall are February and March (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Stamford, CT
- Average snowfall days in January: 6.3 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in January
Stamford, CT
- Average sea temperature in January: 41.6°F
The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).
Average daylight in January /
Average sunshine in January
Stamford, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Stamford, CT
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in January
Stamford, 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
Stamford, CT
- Average cloud cover in January: 45
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Stamford, 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).
