January weather forecast
Hartford, CT

The city of Hartford, Connecticut with the roads leading to the town, and trees on roadsides
The city of Hartford, Connecticut with the roads leading to the town, and trees on roadsides

Weather in January

January, like December, in Hartford, Connecticut, is another cold winter month, with an average temperature varying between 21.4°F (-5.9°C) and 33.1°F (0.6°C).

Temperature

With an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 21.4°F (-5.9°C), January is the coldest month.

Humidity

In January, the average relative humidity is 76%.

Rainfall

In Hartford, Connecticut, it is raining for 6.9 days, with typically 0.63" (16mm) of accumulated precipitation. In Hartford, during the entire year, the rain falls for 113.2 days and collects up to 10.24" (260mm) of precipitation.

Snowfall

Months with snowfall in Hartford are January through May, November and December. In January, it is snowing for 5.5 days. Throughout January, 0.91" (23mm) of snow is accumulated. In Hartford, Connecticut, during the entire year, snow falls for 21.5 days and aggregates up to 4.45" (113mm) of snow.

Daylight

The average length of the day in January in Hartford is 9h and 34min.
On the first day of January, sunrise is at 7:17 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:04 pm EST.

Sunshine

The average sunshine in January is 5.1h.

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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Hartford?

With an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 21.4°F (-5.9°C), January is the coldest month in Hartford.

What is the average humidity in January in Hartford?

The average relative humidity in January in Hartford is 76%.

How many days does it rain in January in Hartford?

In Hartford, Connecticut, in January, during 6.9 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How many days does it snow in January in Hartford?

In Hartford, Connecticut, during January, snow falls for 5.5 days and regularly aggregates up to 0.91" (23mm) of snow.

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

In Hartford, the average day length in January is 9h and 34min.

What time are sunrise and sunset in January in Hartford?

On the first day of January in Hartford, sunrise is at 7:17 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:04 pm EST.

How many hours of sunshine does Hartford have in January?

The average sunshine duration in January is 5.1h.

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

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

How high is the UV index in January in Hartford?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Hartford, CT

Average temperature in January - Hartford, CT
  • Average high temperature in January: 33.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in January: 21.4°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

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Average pressure in January
Hartford, CT

Average pressure in January - Hartford, 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).

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Average wind speed in January
Hartford, CT

Average wind speed in January - Hartford, CT
  • Average wind speed in January: 8.1mph

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in January
Hartford, CT

Average humidity in January - Hartford, CT
  • Average humidity in January: 76%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in January
Hartford, CT

Average rainfall in January - Hartford, CT
  • Average rainfall in January: 0.63"

The wettest months (with the highest rainfall) are June and July (1.06").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in January
Hartford, CT

Average rainfall days in January - Hartford, CT
  • Average rainfall days in January: 6.9 days

The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in January
Hartford, CT

Average snowfall in January - Hartford, CT
  • Average snowfall in January: 0.91"

The month with the highest snowfall is February (1.14").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Hartford, CT

Average snowfall days in January - Hartford, CT
  • Average snowfall days in January: 5.5 days

The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Hartford, CT
  • Average daylight in January: 9h and 34min

The month with the longest days is June (Average daylight: 15h and 10min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • Average sunshine in January: 5h and 6min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in January
Hartford, CT

Average sunshine days in January - Hartford, CT
  • Average sunshine days in January: 20.4 days

The months with the most sunshine days are January and November (20.4 days).
The month with the least sunshine days is June (16.3 days).

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Average UV index in January
Hartford, CT

Average UV index in January - Hartford, 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).

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Average cloud cover in January
Hartford, CT

Average cloud cover in January - Hartford, CT
  • Average cloud cover in January: 45

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in January
Hartford, CT

Average visibility in January - Hartford, 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).

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