January weather forecastKillingworth, CT
January
Weather in January
January, the same as December, is an icy winter month in Killingworth, Connecticut, with an average temperature varying between 25.5°F (-3.6°C) and 35.2°F (1.8°C).Temperature
The coldest time of the year is January, with temperatures averaging a high of 35.2°F (1.8°C) and a low of 25.5°F (-3.6°C).Humidity
In January, the average relative humidity is 74%.Rainfall
In Killingworth, in January, during 9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Killingworth, Connecticut, during the entire year, the rain falls for 166.2 days and collects up to 34.8" (884mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Killingworth, in January, snow falls for 6.3 days, with typically accumulated 2.17" (55mm) of snow. Throughout the year, there are 24.2 snowfall days, and 9.53" (242mm) of snow is accumulated.Daylight
In Killingworth, the average length of the day in January is 9h and 35min.On the first day of the month, sunrise is at 7:16 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:02 am and sunset at 5:04 pm EST.
Sunshine
In Killingworth, 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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Killingworth, CT
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 25.5°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in January
Killingworth, 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
Killingworth, CT
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in January
Killingworth, CT
- Average humidity in January: 74%
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Killingworth, CT
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in January
Killingworth, CT
- Average rainfall days in January: 9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).
Average snowfall in January
Killingworth, CT
- Average snowfall in January: 2.17"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Killingworth, CT
- Average snowfall days in January: 6.3 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Killingworth, 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 6min
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 48min).
Average sunshine days in January
Killingworth, CT
- Average sunshine days in January: 16 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in January
Killingworth, 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
Killingworth, CT
- Average cloud cover in January: 45
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Killingworth, 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).
