January weather forecast
Unionville, CT

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Weather in January

January, like December, in Unionville, Connecticut, is a wintry winter month, with temperature in the range of an average high of 32°F (0°C) and an average low of 20.1°F (-6.6°C).

Temperature

January is the coldest month of the year, registering average temperatures as high as 32°F (0°C) and as low as 20.1°F (-6.6°C).

Humidity

In January, the average relative humidity in Unionville, Connecticut, is 77%.

Rainfall

In Unionville, in January, during 9.4 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Unionville, Connecticut, during the entire year, the rain falls for 159.6 days and collects up to 31.97" (812mm) of precipitation.

Snowfall

Months with snowfall in Unionville, Connecticut, are January through May, October through December. In Unionville, during January, snow falls for 8.2 days and regularly aggregates up to 3.74" (95mm) of snow. Throughout the year, there are 33.1 snowfall days, and 18.39" (467mm) of snow is accumulated.

Daylight

In Unionville, Connecticut, the average length of the day in January is 9h and 34min.
On the first day of January in Unionville, sunrise is at 7:18 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:04 pm EST.

Sunshine

The average sunshine in January is 4.9h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Unionville. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Unionville?

January, with its high-temperature average of 32°F (0°C) and a low-temperature average of 20.1°F (-6.6°C), is the coldest month in Unionville.

How cold is January in Unionville?

During January, Unionville experiences an average high-temperature of 32°F (0°C) and a low-temperature of 20.1°F (-6.6°C).

What is the average humidity in January in Unionville?

In Unionville, the average relative humidity in January is 77%.

How many days does it rain in January in Unionville?

In January, in Unionville, Connecticut, the rain falls for 9.4 days. Throughout January, 2.32" (59mm) of precipitation is accumulated.

How much does it snow in Unionville in January?

In Unionville, Connecticut, in January, during 8.2 snowfall days, 3.74" (95mm) of snow is typically accumulated.

How many hours of daylight does Unionville have in January?

The average day length in January is 9h and 34min.

What time are sunrise and sunset in January in Unionville?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:31 pm. On the last day of the month, in Unionville, sunrise is at 7:04 am and sunset at 5:04 pm EST.

How many hours of sunshine does Unionville have in January?

The average sunshine duration in January in Unionville, Connecticut, is 4.9h.

What is the month with the lowest UV index in Unionville?

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

How high is the UV index in January in Unionville?

In Unionville, Connecticut, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Unionville, CT

Average temperature in January - Unionville, CT
  • Average high temperature in January: 32°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°F).

  • Average low temperature in January: 20.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in January
Unionville, CT

Average pressure in January - Unionville, CT
  • Average pressure in January: 30.03"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
Unionville, CT

Average wind speed in January - Unionville, CT
  • Average wind speed in January: 8.3mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in January
Unionville, CT

Average humidity in January - Unionville, CT
  • Average humidity in January: 77%

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

Average rainfall in January
Unionville, CT

Average rainfall in January - Unionville, CT
  • Average rainfall in January: 2.32"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in January
Unionville, CT

Average rainfall days in January - Unionville, CT
  • Average rainfall days in January: 9.4 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in January
Unionville, CT

Average snowfall in January - Unionville, CT
  • Average snowfall in January: 3.74"

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Unionville, CT

Average snowfall days in January - Unionville, CT
  • Average snowfall days in January: 8.2 days

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Unionville, CT

Average daylight in January / Average sunshine in January - Unionville, CT
  • Average daylight in January: 9h and 4min

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: 4h and 5min

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
Unionville, CT

Average sunshine days in January - Unionville, CT
  • Average sunshine days in January: 17.1 days

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in January
Unionville, CT

Average UV index in January - Unionville, CT
  • Average UV index in January: 2

The months with the highest UV index are June and July (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
Unionville, CT

Average cloud cover in January - Unionville, CT
  • Average cloud cover in January: 46

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Unionville, CT

Average visibility in January - Unionville, CT
  • Average visibility in January: 5mi

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

Unionville, Connecticut, USA

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