January weather forecast
Collinsville, CT

Share

Weather in January

January, like December, in Collinsville, Connecticut, is another cold winter month, with an average temperature varying between 32°F (0°C) and 20.1°F (-6.6°C).

Temperature

In Collinsville, the lowest average temperatures are observed in January, with a high of 32°F (0°C) and a low of 20.1°F (-6.6°C).

Humidity

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

Rainfall

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

Snowfall

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

Daylight

In Collinsville, the average length of the day in January is 9h and 33min.
On the first day of January in Collinsville, sunrise is at 7:19 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:04 pm EST.

Sunshine

In January, the average sunshine in Collinsville, Connecticut, is 4.9h.

UV index

The months with the lowest UV index in Collinsville 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 vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 2 during January translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Collinsville?

January, with an average high of 32°F (0°C) and a low of 20.1°F (-6.6°C), signifies the coldest month of the year in Collinsville.

How cold is January in Collinsville?

The average high-temperature, in January, in Collinsville, is 32°F (0°C), while the average low-temperature is 20.1°F (-6.6°C).

What is the average humidity in January in Collinsville?

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

How many days does it rain in January in Collinsville?

In Collinsville, in January, it is raining for 9.4 days, with typically 2.32" (59mm) of accumulated precipitation.

How much does it snow in Collinsville in January?

In Collinsville, Connecticut, in January, snow falls for 8.2 days, with typically accumulated 3.74" (95mm) of snow.

How many hours of daylight does Collinsville have in January?

In Collinsville, Connecticut, the average day length in January is 9h and 33min.

When are sunrise and sunset in January in Collinsville?

On the first day of January in Collinsville, Connecticut, sunrise is at 7:19 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:04 pm EST.

How long on average sun shines in January in Collinsville?

In Collinsville, the average sunshine duration in January is 4.9h.

When is the lowest UV index in Collinsville?

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

What is the UV index intensity in January in Collinsville?

In January, the average daily maximum UV index is 2. A UV Index value 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
Collinsville, CT

Average temperature in January - Collinsville, 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
Collinsville, CT

Average pressure in January - Collinsville, 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
Collinsville, CT

Average wind speed in January - Collinsville, 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
Collinsville, CT

Average humidity in January - Collinsville, 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
Collinsville, CT

Average rainfall in January - Collinsville, 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
Collinsville, CT

Average rainfall days in January - Collinsville, 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
Collinsville, CT

Average snowfall in January - Collinsville, 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
Collinsville, CT

Average snowfall days in January - Collinsville, 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
Collinsville, CT

Average daylight in January / Average sunshine in January - Collinsville, 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
Collinsville, CT

Average sunshine days in January - Collinsville, 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
Collinsville, CT

Average UV index in January - Collinsville, 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
Collinsville, CT

Average cloud cover in January - Collinsville, 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
Collinsville, CT

Average visibility in January - Collinsville, 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).

Collinsville, Connecticut, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location