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
In Wilton, January records the lowest average temperatures, peaking at 35.1°F (1.7°C) and reaching a low of 25°F (-3.9°C).Humidity
The average relative humidity in January is 74%.Rainfall
January is the month with the least rainfall in Wilton. Rain falls for 8.6 days and accumulates 2.44" (62mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Wilton, during January, snow falls for 7.8 days and regularly aggregates up to 2.52" (64mm) of snow. Throughout the year, in Wilton, there are 28.5 snowfall days, and 11.65" (296mm) of snow is accumulated.Daylight
The average length of the day in January in Wilton, Connecticut, is 9h and 37min.On the first day of January, sunrise is at 7:19 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:08 pm EST.
Sunshine
In January, the average sunshine is 5.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wilton. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 2 in January translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the coldest time of year in Wilton?
How cold is January in Wilton?
What is the average humidity in January in Wilton?
What is the driest month in Wilton?
How many days does it rain in January in Wilton?
How many days does it snow in January in Wilton?
What is the average length of the day in January in Wilton?
When are sunrise and sunset in January in Wilton?
How long on average sun shines in January in Wilton?
When is the lowest UV index in Wilton?
What is the UV index intensity in January in Wilton?
Average temperature in January
Wilton, CT
- Average high temperature in January: 35.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in January: 25°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in January
Wilton, CT
- Average pressure in January: 30.05"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
Wilton, CT
- Average wind speed in January: 9.5mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in January
Wilton, CT
- Average humidity in January: 74%
The months with the highest relative humidity are February, May, June, October and December (76%).
The month with the lowest relative humidity is April (72%).
Average rainfall in January
Wilton, CT
- Average rainfall in January: 2.44"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is January (2.44").
Average rainfall days in January
Wilton, CT
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in January
Wilton, CT
- Average snowfall in January: 2.52"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Wilton, CT
- Average snowfall days in January: 7.8 days
The month with the highest number of snowfall days is February (8.3 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
Wilton, 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 18min).
- Average sunshine in January: 5h and 1min
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
Wilton, CT
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in January
Wilton, 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
Wilton, CT
- Average cloud cover in January: 44
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Wilton, 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).
Wilton, Connecticut, USA
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