Climate and monthly 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). 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. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Hartford, Connecticut, with an average temperature ranging between max 35.8°F (2.1°C) and min 21.6°F (-5.8°C). In Hartford, the average high-temperature in February is essentially the same as in January - a still cold 35.8°F (2.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Hartford, Connecticut, with an average temperature ranging between min 29.5°F (-1.4°C) and max 43.9°F (6.6°C). In Hartford, Connecticut, the average high-temperature in March marginally rises from a wintry 35.8°F (2.1°C) in February to a chilly 43.9°F (6.6°C). Weather in March »

Weather in April

April in Hartford, Connecticut, is a mild spring month, with an average temperature ranging between min 39.9°F (4.4°C) and max 56.5°F (13.6°C). In April, the average high-temperature increases from a frosty 43.9°F (6.6°C) in March to a mild 56.5°F (13.6°C). Weather in April »

Weather in May

May, the last month of the spring in Hartford, is a pleasant month, with an average temperature varying between 49.5°F (9.7°C) and 68.7°F (20.4°C). In Hartford, the average high-temperature in May rises from a mild 56.5°F (13.6°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Hartford, Connecticut, with an average temperature ranging between max 76.5°F (24.7°C) and min 56.8°F (13.8°C). In June, the average high-temperature marginally rises from a pleasant 68.7°F (20.4°C) in May to a warm 76.5°F (24.7°C). Weather in June »

Weather in July

July, like June, in Hartford, Connecticut, is a moderately hot summer month, with an average temperature ranging between max 82.9°F (28.3°C) and min 63.7°F (17.6°C). The warmest month is July, with an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 63.7°F (17.6°C). The average heat index in July is evaluated at a tropical 89.4°F (31.9°C). Weather in July »

Weather in August

August, the last month of the summer in Hartford, is also a moderately hot month, with an average temperature fluctuating between 81°F (27.2°C) and 62.2°F (16.8°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 81°F (27.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Hartford, Connecticut, with an average temperature varying between 55.2°F (12.9°C) and 73.4°F (23°C). In Hartford, the average high-temperature in September marginally drops from a moderately hot 81°F (27.2°C) in August to a still warm 73.4°F (23°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Hartford, Connecticut, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 46.8°F (8.2°C). In October, the average high-temperature decreases from a moderately hot 73.4°F (23°C) in September to an enjoyable 61.2°F (16.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Hartford, is also a frosty month, with an average temperature fluctuating between 48.9°F (9.4°C) and 36°F (2.2°C). In November, the average high-temperature decreases from a comfortable 61.2°F (16.2°C) in October to a chilly 48.9°F (9.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Hartford, Connecticut, with an average temperature ranging between max 38.5°F (3.6°C) and min 27.7°F (-2.4°C). In December, the average high-temperature decreases from a frosty 48.9°F (9.4°C) in November to a wintry 38.5°F (3.6°C). Weather in December »
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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.

How many days does it rain in Hartford?

In Hartford, Connecticut, during the entire year, the rain falls for 113.2 days and collects up to 10.24" (260mm) of precipitation.

When does it snow in Hartford?

Months with snowfall in Hartford, Connecticut, are January through May, November and December.

How many days does it snow in Hartford?

In Hartford, during the entire year, snow falls for 21.5 days and aggregates up to 4.45" (113mm) of snow.

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 most humid month in Hartford?

The most humid month in Hartford, Connecticut, is February, with an average relative humidity of 79%.

When does it snow the most in Hartford?

The month with the most snowfall is February, when snow falls for 5.7 days and typically aggregates up to 1.14" (29mm) of snow.

What is the month with the least sunshine in Hartford?

With an average of 4.6h of sunshine, February has the least sunshine of the year in Hartford, Connecticut.

When is Daylight Saving Time (DST) in Hartford?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Hartford, Connecticut, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Hartford?

The least humid month is April, with an average relative humidity of 70%.

What is the rainiest month in Hartford?

The wettest months are June and July, with an average 1.06" (27mm) of rainfall.

When it does not snow in Hartford?

June through October are months without snowfall in Hartford, Connecticut.

When are the longest days in Hartford?

June has the longest days of the year, with an average of 15h and 10min of daylight.

When is the highest UV index in Hartford?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in Hartford?

With an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 63.7°F (17.6°C), July is the warmest month in Hartford, Connecticut.

What is the month with the most sunshine in Hartford?

The months with the most sunshine in Hartford, Connecticut, are July and August, with an average of 10.4h of sunshine.

What is the driest month in Hartford?

September is the month with the least rainfall in Hartford, Connecticut. Rain falls for 8.2 days and accumulates 0.43" (11mm) of precipitation.

What is the month with the shortest days in Hartford?

December has the shortest days of the year in Hartford, with an average of 9h and 13min of daylight.

Average temperature
Hartford, CT

Average temperature - Hartford, CT

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).

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
Hartford, CT

Average pressure - Hartford, CT

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
Hartford, CT

Average wind speed - Hartford, CT

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 rainfall
Hartford, CT

Average rainfall - Hartford, CT

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
Hartford, CT

Average rainfall days - Hartford, CT

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
Hartford, CT

Average snowfall - Hartford, CT

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
Hartford, CT

Average snowfall days - Hartford, CT

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 / Average sunshine
Hartford, CT

Average daylight / Average sunshine - Hartford, CT

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).

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
Hartford, CT

Average sunshine days - Hartford, CT

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
Hartford, CT

Average UV index - Hartford, CT

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 visibility
Hartford, CT

Average visibility - Hartford, CT

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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