January weather forecast
Hartford, CT

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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 in Hartford, Connecticut witnesses a subdued winter character, with the mercury often lingering in the low range. Flurries of snow appear, altering the landscape and environment drastically. The propensity towards colder conditions might potentially augment the beauty, but it also accentuates the chills. With temperatures sliding to a low of 21.4°F (-5.9°C), the atmosphere remains frigid throughout the month. Consequently, local residents prepare for the brisk weather, and many outdoor activities are curtailed due to freezing conditions.

Temperature

During the coldest month in Hartford, January, temperatures average a high of 33.1°F (0.6°C) and a low of 21.4°F (-5.9°C).

Humidity

In January, the average relative humidity in Hartford is 76%.

Rainfall

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

Snowfall

January through May, November and December are months with snowfall in Hartford. In Hartford, in January, snow falls for 5.5 days, with typically accumulated 0.91" (23mm) of snow. In Hartford, 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 is 9h and 34min.
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 7:04 am and sunset at 5:04 pm EST.

Sunshine

In Hartford, Connecticut, the average sunshine in January is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hartford, Connecticut. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What month is the coldest in Hartford?

January, with average temperatures reaching a high of 33.1°F (0.6°C) and a low of 21.4°F (-5.9°C), is the coldest month.

How cold is January in Hartford?

During January, Hartford experiences an average high-temperature of 33.1°F (0.6°C) and a low-temperature of 21.4°F (-5.9°C).

What is the average humidity in January in Hartford?

In January, the average relative humidity is 76%.

How many days does it rain in January in Hartford?

In Hartford, during January, the rain falls for 6.9 days and regularly aggregates up to 0.63" (16mm) of precipitation.

How much does it snow in Hartford in January?

In January, it is snowing for 5.5 days. Throughout January, 0.91" (23mm) of snow is accumulated.

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

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

When are sunrise and sunset in January in Hartford?

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

How long on average sun shines in January in Hartford?

In Hartford, Connecticut, 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, Connecticut, are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Hartford?

The average daily maximum UV index in January in Hartford, Connecticut, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to 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
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 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: 5h and 1min

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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Hartford, Connecticut, USA

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