Climate and monthly weather forecast
Hartford, WI

Weather in January

January, like December, is another subzero cold winter month in Hartford, Wisconsin, with an average temperature fluctuating between 12.7°F (-10.7°C) and 23.9°F (-4.5°C). January is the coldest month, with an average high-temperature of 23.9°F (-4.5°C) and an average low-temperature of 12.7°F (-10.7°C). Weather in January »

Weather in February

February, the last month of the winter in Hartford, is another freezing cold month, with an average temperature fluctuating between 15.3°F (-9.3°C) and 27.3°F (-2.6°C). In Hartford, the average high-temperature in February is relatively the same as in January - a still subzero cold 27.3°F (-2.6°C). Weather in February »

Weather in March

March, the first month of the spring in Hartford, is a wintry month, with an average temperature fluctuating between 39.9°F (4.4°C) and 27°F (-2.8°C). In March, the average high-temperature rises from a freezing cold 27.3°F (-2.6°C) in February to a cold 39.9°F (4.4°C). Weather in March »

Weather in April

April in Hartford, Wisconsin, is a fresh spring month, with an average temperature ranging between min 36.7°F (2.6°C) and max 51.4°F (10.8°C). In Hartford, the average high-temperature in April increases from a cold 39.9°F (4.4°C) in March to a cool 51.4°F (10.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Hartford, Wisconsin, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 47.1°F (8.4°C). In Hartford, the average high-temperature in May increases from a fresh 51.4°F (10.8°C) in April to a comfortable 63.5°F (17.5°C). Weather in May »

Weather in June

June, the first month of the summer in Hartford, is a pleasant month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 56.1°F (13.4°C). In Hartford, the average high-temperature in June rises from a comfortable 63.5°F (17.5°C) in May to a pleasant 72.5°F (22.5°C). Weather in June »

Weather in July

July in Hartford, Wisconsin, is a moderately hot summer month, with an average temperature fluctuating between 77.9°F (25.5°C) and 61.7°F (16.5°C). The warmest month is July, with an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 61.7°F (16.5°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Hartford, Wisconsin, with an average temperature ranging between max 76.6°F (24.8°C) and min 59.9°F (15.5°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 76.6°F (24.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Hartford, is still a pleasant month, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 53.2°F (11.8°C). In September, the average high-temperature slightly decreases from a moderately hot 76.6°F (24.8°C) in August to a pleasant 70°F (21.1°C). Weather in September »

Weather in October

October, the same as September, in Hartford, Wisconsin, is another mild autumn month, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 56.5°F (13.6°C). In Hartford, the average high-temperature in October drops from an agreeable 70°F (21.1°C) in September to a moderate 56.5°F (13.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Hartford, is another cold month, with an average temperature fluctuating between 42.6°F (5.9°C) and 30.7°F (-0.7°C). In November, the average high-temperature drops from a mild 56.5°F (13.6°C) in October to a wintry 42.6°F (5.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Hartford, Wisconsin, with temperature in the range of an average high of 30.6°F (-0.8°C) and an average low of 20.7°F (-6.3°C). In Hartford, the average high-temperature in December drops from a cold 42.6°F (5.9°C) in November to a freezing cold 30.6°F (-0.8°C). Weather in December »
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FAQ

What is the coldest month in Hartford?

The coldest month in Hartford, Wisconsin, is January, with an average high-temperature of 23.9°F (-4.5°C) and an average low-temperature of 12.7°F (-10.7°C).

What is the most humid month in Hartford?

January is the most humid month, with an average relative humidity of 88%.

How much does it rain in Hartford?

In Hartford, Wisconsin, during the entire year, the rain falls for 141.6 days and collects up to 25.67" (652mm) of precipitation.

When does it snow in Hartford?

Months with snowfall in Hartford are January through May, October through December.

How many days does it snow in Hartford?

Throughout the year, in Hartford, Wisconsin, there are 60.3 snowfall days, and 17.72" (450mm) of snow is accumulated.

What is the month with the least sunshine in Hartford?

With an average of 3.3h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index in Hartford?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Hartford.

What is the driest month in Hartford?

The months with the least rainfall are February and December Rain falls for 4.3 days and accumulates 1.18" (30mm) of rain.

When does it snow the most in Hartford?

February is the month with the most snowfall in Hartford. Snow falls for 13.2 days and accumulates 4.45" (113mm) of snow.

When is Daylight Saving Time (DST) in Hartford?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Hartford, Wisconsin, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

What is the least humid month in Hartford?

April is the least humid month in Hartford, with an average relative humidity of 77%.

What is the month with the highest UV index in Hartford?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Hartford, Wisconsin.

What is the wettest month in Hartford?

The month with the most rainfall is June, when the rain falls for 16.2 days and typically aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Hartford?

June through September are months without snowfall.

When are the longest days in Hartford?

June has the longest days of the year in Hartford, with an average of 15h and 21min of daylight.

What is the warmest month in Hartford?

The warmest month is July, with an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 61.7°F (16.5°C).

What month has the most sunshine in Hartford?

July has the most sunshine of the year, with an average of 10.1h of sunshine.

What is the month with the shortest days in Hartford?

The month with the shortest days in Hartford, Wisconsin, is December, with an average of 9h and 2min of daylight.

Average temperature
Hartford, WI

Average temperature - Hartford, WI

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (23.9°F).

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

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Average pressure
Hartford, WI

Average pressure - Hartford, WI

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Hartford, WI

Average wind speed - Hartford, WI

The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average rainfall
Hartford, WI

Average rainfall - Hartford, WI

The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are February and December (1.18").

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Average rainfall days
Hartford, WI

Average rainfall days - Hartford, WI

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall
Hartford, WI

Average snowfall - Hartford, WI

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Hartford, WI

Average snowfall days - Hartford, WI

The month with the highest number of snowfall days is January (15.1 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, WI

Average daylight / Average sunshine - Hartford, WI

The month with the longest days is June (Average daylight: 15h and 21min).
The month with the shortest days is December (Average daylight: 9h and 2min).

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days
Hartford, WI

Average sunshine days - Hartford, WI

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index
Hartford, WI

Average UV index - Hartford, WI

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

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Average visibility
Hartford, WI

Average visibility - Hartford, WI

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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