January weather forecast
Simsbury, CT

Share
The iconic old tower set amid dense tree cover in Simsbury, Connecticut
The iconic old tower set amid dense tree cover in Simsbury, Connecticut

Weather in January

The onset of the year in Simsbury, Connecticut is accompanied by a winterscape vista, as residents endure chilly days and colder nights. Marked by constant cloud cover, short days, and minimal sunlight, January ensures visibility stays relatively consistent. Featuring 8.2 days of snowfall on average, January produces around 3.74" (95mm) of snow, adding to the wintry aesthetic. This month is characterized by bleak skies and the sight of breath frosting in the cold air. The coldest month of the year, January sees one wrapping themselves in heavier clothing to brave the elements outside.

Temperature

In Simsbury, January is the month with the lowest recorded average temperatures, measuring a high of 32°F (0°C) and a low of 20.1°F (-6.6°C).

Humidity

The average relative humidity in January in Simsbury is 77%.

Rainfall

In Simsbury, in January, it is raining for 9.4 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 159.6 rainfall days, and 31.97" (812mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Simsbury. In Simsbury, Connecticut, during January, snow falls for 8.2 days and regularly aggregates up to 3.74" (95mm) of snow. In Simsbury, during the entire year, snow falls for 33.1 days and aggregates up to 18.39" (467mm) 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 7:18 am and sunset at 4:30 pm. On the last day of January, in Simsbury, sunrise is at 7:04 am and sunset at 5:04 pm EST.

Sunshine

In January, the average sunshine is 4.9h.

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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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 Simsbury?

January is the month when Simsbury sees the average lowest temperatures, with a high of 32°F (0°C) and a low of 20.1°F (-6.6°C).

How cold is January in Simsbury?

The average high-temperature and low-temperature in Simsbury, Connecticut, during January are 32°F (0°C) and 20.1°F (-6.6°C) respectively.

What is the average humidity in January in Simsbury?

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

How many days does it rain in January in Simsbury?

In Simsbury, Connecticut, during January, the rain falls for 9.4 days and regularly aggregates up to 2.32" (59mm) of precipitation.

How many days does it snow in January in Simsbury?

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

What is the average length of the day in January in Simsbury?

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

When are sunrise and sunset in January in Simsbury?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:30 pm. On the last day of the month, in Simsbury, Connecticut, sunrise is at 7:04 am and sunset at 5:04 pm EST.

How long on average sun shines in January in Simsbury?

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

What are the months with the lowest UV index in Simsbury?

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

How high is the UV index in January in Simsbury?

In Simsbury, Connecticut, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Simsbury, CT

Average temperature in January - Simsbury, 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
Simsbury, CT

Average pressure in January - Simsbury, 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
Simsbury, CT

Average wind speed in January - Simsbury, 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
Simsbury, CT

Average humidity in January - Simsbury, 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
Simsbury, CT

Average rainfall in January - Simsbury, 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
Simsbury, CT

Average rainfall days in January - Simsbury, 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
Simsbury, CT

Average snowfall in January - Simsbury, 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
Simsbury, CT

Average snowfall days in January - Simsbury, 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
Simsbury, CT

Average daylight in January / Average sunshine in January - Simsbury, 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: 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
Simsbury, CT

Average sunshine days in January - Simsbury, 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
Simsbury, CT

Average UV index in January - Simsbury, 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
Simsbury, CT

Average cloud cover in January - Simsbury, 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
Simsbury, CT

Average visibility in January - Simsbury, 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).

Simsbury, Connecticut, USA

Weather forecast for your location

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