Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January tends to be the coldest month, with temperatures averaging a daily high of 33.8°F (1°C) and a low of 23.2°F (-4.9°C).Humidity
In Seymour, the average relative humidity in January is 75%.Rainfall
The months with the least rainfall are January and February Rain falls for 5.3 days and accumulates 0.47" (12mm) of rain.Snowfall
January through March, November and December are months with snowfall. In January, in Seymour, it is snowing for 5.2 days. Throughout January, 0.35" (9mm) of snow is accumulated. In Seymour, during the entire year, snow falls for 18.8 days and aggregates up to 2.05" (52mm) of snow.Daylight
In January, the average length of the day is 9h and 35min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:33 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:06 pm EST.
Sunshine
The average sunshine in January is 5.1h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Seymour, CT
- Average high temperature in January: 33.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in January: 23.2°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in January
Seymour, 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
Seymour, CT
- Average wind speed in January: 8.9mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in January
Seymour, CT
- Average humidity in January: 75%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Seymour, CT
- Average rainfall in January: 0.47"
The wettest month (with the highest rainfall) is July (1.22").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days in January
Seymour, CT
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in January
Seymour, CT
- Average snowfall in January: 0.35"
The month with the highest snowfall is December (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Seymour, CT
- Average snowfall days in January: 5.2 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Seymour, CT
- Average daylight in January: 9h and 4min
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 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Seymour, CT
- Average sunshine days in January: 22.6 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in January
Seymour, 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
Seymour, CT
- Average cloud cover in January: 45
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Seymour, CT
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Seymour, Connecticut, USA
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