January weather forecast
South Willington, CT

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Weather in January

January, the same as December, is an icy winter month in South Willington, Connecticut, with an average temperature ranging between max 32.4°F (0.2°C) and min 19.8°F (-6.8°C).

Temperature

January, characterized by an average high temperature of 32.4°F (0.2°C) and a low temperature of 19.8°F (-6.8°C), is generally the coldest month.

Humidity

The average relative humidity in January in South Willington is 78%.

Rainfall

In January, in South Willington, the rain falls for 5.5 days. Throughout January, 0.51" (13mm) of precipitation is accumulated. In South Willington, Connecticut, during the entire year, the rain falls for 105.6 days and collects up to 9.84" (250mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In South Willington, in January, during 5.3 snowfall days, 0.71" (18mm) of snow is typically accumulated. In South Willington, during the entire year, snow falls for 23.1 days and aggregates up to 4.69" (119mm) of snow.

Daylight

The average length of the day in January is 9h and 33min.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:28 pm. On the last day of January, in South Willington, sunrise is at 7:02 am and sunset at 5:02 pm EST.

Sunshine

In South Willington, the average sunshine in January is 5h.

UV index

The months with the lowest UV index in South Willington are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 2 in January translates into these instructions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in South Willington?

January is the coldest month of the year in South Willington, Connecticut, registering average temperatures as high as 32.4°F (0.2°C) and as low as 19.8°F (-6.8°C).

How cold is January in South Willington?

In January, the average high-temperature and low-temperature in South Willington, Connecticut, are 32.4°F (0.2°C) and 19.8°F (-6.8°C) respectively.

What is the average humidity in January in South Willington?

In South Willington, Connecticut, the average relative humidity in January is 78%.

How much does it rain in South Willington in January?

In South Willington, in January, during 5.5 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

How much does it snow in South Willington in January?

In South Willington, Connecticut, in January, during 5.3 snowfall days, 0.71" (18mm) of snow is typically accumulated.

What is the average length of the day in January in South Willington?

In South Willington, the average day length in January is 9h and 33min.

When is the sunrise / sunset in January in South Willington?

In January, on the first day of the month, sunrise is at 7:16 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:02 pm EST.

How long on average sun shines in January in South Willington?

In South Willington, the average sunshine duration in January is 5h.

When is the lowest UV index in South Willington?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in South Willington, Connecticut.

What is the UV index reading in January in South Willington?

The average daily maximum UV index in January in South Willington, Connecticut, is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
South Willington, CT

Average temperature in January - South Willington, CT
  • Average high temperature in January: 32.4°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in January
South Willington, CT

Average pressure in January - South Willington, 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
South Willington, CT

Average wind speed in January - South Willington, CT
  • Average wind speed in January: 8.2mph

The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in January
South Willington, CT

Average humidity in January - South Willington, CT
  • Average humidity in January: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

Average rainfall in January
South Willington, CT

Average rainfall in January - South Willington, CT
  • Average rainfall in January: 0.51"

The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in January
South Willington, CT

Average rainfall days in January - South Willington, CT
  • Average rainfall days in January: 5.5 days

The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).

Average snowfall in January
South Willington, CT

Average snowfall in January - South Willington, CT
  • Average snowfall in January: 0.71"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
South Willington, CT

Average snowfall days in January - South Willington, CT
  • Average snowfall days in January: 5.3 days

The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
South Willington, CT

Average daylight in January / Average sunshine in January - South Willington, CT
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 5h and 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
South Willington, CT

Average sunshine days in January - South Willington, CT
  • Average sunshine days in January: 21.9 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).

Average UV index in January
South Willington, CT

Average UV index in January - South Willington, 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
South Willington, CT

Average cloud cover in January - South Willington, CT
  • Average cloud cover in January: 46

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
South Willington, CT

Average visibility in January - South Willington, CT
  • Average visibility in January: 6mi

The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).

South Willington, Connecticut, USA

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