Climate and monthly weather forecast
Hartford, WI

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Weather in January

January, like December, is a freezing cold winter month in Hartford, Wisconsin, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 23.9°F (-4.5°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 23.9°F (-4.5°C) and a low of 12.7°F (-10.7°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Hartford, Wisconsin, with an average temperature varying between 15.3°F (-9.3°C) and 27.3°F (-2.6°C). Entering February, Hartford's average high-temperature reads a still subzero cold 27.3°F (-2.6°C), indicating a close resemblance to the previous month's climate. Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Hartford, Wisconsin, with an average temperature ranging between max 39.9°F (4.4°C) and min 27°F (-2.8°C). The commencement of March sees a shift in the average high-temperature, moving from a subzero cold 27.3°F (-2.6°C) in February to an icy 39.9°F (4.4°C). Weather in March »

Weather in April

April is a cool spring month in Hartford, Wisconsin, with an average temperature fluctuating between 51.4°F (10.8°C) and 36.7°F (2.6°C). April's arrival brings a change in high-temperatures, moving 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

May, the last month of the spring in Hartford, is a refreshing month, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 63.5°F (17.5°C). In Hartford, the onset of May comes with an increased average high-temperature, moving from April's cool 51.4°F (10.8°C) 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 an agreeable month, with an average temperature varying between 56.1°F (13.4°C) and 72.5°F (22.5°C). The shift into June is characterized by a rise in the average high-temperature, transitioning from May's comfortable 63.5°F (17.5°C) to an agreeable 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 varying between 61.7°F (16.5°C) and 77.9°F (25.5°C). July is the warmest month, 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

August, the last month of the summer in Hartford, is another warm month, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 59.9°F (15.5°C). August's weather records an average high-temperature of a still moderately hot 76.6°F (24.8°C), showing little deviation from July. 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 low of 53.2°F (11.8°C) and an average high of 70°F (21.1°C). The transition to September results in a modest reduction in average high-temperature, moving from a warm 76.6°F (24.8°C) in August to an agreeable 70°F (21.1°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Hartford, Wisconsin, with an average temperature varying between 42.3°F (5.7°C) and 56.5°F (13.6°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from an agreeable 70°F (21.1°C) in September to a refreshing 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 temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 42.6°F (5.9°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a refreshing 56.5°F (13.6°C) in October to a cold 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 an average temperature fluctuating between 20.7°F (-6.3°C) and 30.6°F (-0.8°C). In December, the average high-temperature goes from an icy 42.6°F (5.9°C) in November to a subzero cold 30.6°F (-0.8°C). Weather in December »
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Frequently asked questions

What month is the coldest in Hartford?

In Hartford, January is the coldest month, with temperatures averaging a high of 23.9°F (-4.5°C) and a low of 12.7°F (-10.7°C).

What is the most humid month in Hartford?

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

How many days does it rain in Hartford?

Throughout the year, in Hartford, there are 141.6 rainfall days, and 25.67" (652mm) of precipitation is accumulated.

When does it snow in Hartford?

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

How many days does it snow in Hartford?

Throughout the year, in Hartford, 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 in Hartford, Wisconsin.

When is 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, Wisconsin.

What is the driest month in Hartford?

February and December are months with the least rain when the rain falls for 4.3 days and typically aggregates up to 1.18" (30mm) of rain.

What is the snowiest month in Hartford?

The month with the most snowfall is February, when snow falls for 13.2 days and typically aggregates up to 4.45" (113mm) of snow.

When is Daylight Saving Time (DST) in Hartford?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the least humid month in Hartford?

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

What are the months 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 in Hartford 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?

With an average of 15h and 18min of daylight, June has the longest days of the year.

What time of the year is the hottest in Hartford?

July is the warmest month of the year in Hartford, registering average temperatures as high as 77.9°F (25.5°C) and as low as 61.7°F (16.5°C).

What month has the most sunshine in Hartford?

With an average of 10.1h of sunshine, July has the most sunshine of the year in Hartford, Wisconsin.

What is the month with the shortest days in Hartford?

December has the shortest days of the year in Hartford, Wisconsin, with an average of 9h and 0min 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 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

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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Hartford, Wisconsin, USA

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