Climate and monthly weather forecast
Fort Atkinson, IA

Weather in January

January, the same as December, in Fort Atkinson, Iowa, is another subzero cold winter month, with an average temperature varying between 9.7°F (-12.4°C) and 22.3°F (-5.4°C). January is the coldest month, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.7°F (-12.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Fort Atkinson, Iowa, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 26.1°F (-3.3°C). In February, the average high-temperature is practically the same as in January - a still freezing cold 26.1°F (-3.3°C). Weather in February »

Weather in March

March, the first month of the spring in Fort Atkinson, is a wintry month, with an average temperature ranging between min 26.8°F (-2.9°C) and max 41°F (5°C). In Fort Atkinson, Iowa, the average high-temperature in March soars, from a freezing cold 26.1°F (-3.3°C) in February, to a wintry 41°F (5°C). Weather in March »

Weather in April

April is a fresh spring month in Fort Atkinson, Iowa, with an average temperature varying between 37.4°F (3°C) and 54°F (12.2°C). In Fort Atkinson, the average high-temperature in April increases from a cold 41°F (5°C) in March to a cool 54°F (12.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Fort Atkinson, Iowa, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 65.7°F (18.7°C). In Fort Atkinson, the average high-temperature in May rises from a cool 54°F (12.2°C) in April to a comfortable 65.7°F (18.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Fort Atkinson, Iowa, with an average temperature varying between 75°F (23.9°C) and 58.6°F (14.8°C). In Fort Atkinson, the average high-temperature in June increases from an enjoyable 65.7°F (18.7°C) in May to a moderately hot 75°F (23.9°C). Weather in June »

Weather in July

July, like June, in Fort Atkinson, Iowa, is another warm summer month, with an average temperature ranging between min 61.9°F (16.6°C) and max 78.4°F (25.8°C). With an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 61.9°F (16.6°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Fort Atkinson, is another warm month, with an average temperature ranging between min 59.4°F (15.2°C) and max 77.2°F (25.1°C). In August, the average high-temperature is essentially the same as in July - a still warm 77.2°F (25.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Fort Atkinson, is also an agreeable month, with an average temperature fluctuating between 52°F (11.1°C) and 70.7°F (21.5°C). In September, the average high-temperature marginally drops from a moderately hot 77.2°F (25.1°C) in August to a pleasant 70.7°F (21.5°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Fort Atkinson, Iowa, with an average temperature ranging between min 41.2°F (5.1°C) and max 56.3°F (13.5°C). In Fort Atkinson, the average high-temperature in October significantly decreases from an agreeable 70.7°F (21.5°C) in September to a moderate 56.3°F (13.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Fort Atkinson, Iowa, with an average temperature varying between 29.3°F (-1.5°C) and 41.9°F (5.5°C). In Fort Atkinson, the average high-temperature in November declines considerably from a moderate 56.3°F (13.5°C) in October to a wintry 41.9°F (5.5°C). Weather in November »

Weather in December

December, the first month of the winter in Fort Atkinson, is also a subzero cold month, with an average temperature fluctuating between 18.3°F (-7.6°C) and 28.4°F (-2°C). In December, the average high-temperature drops from a cold 41.9°F (5.5°C) in November to a freezing cold 28.4°F (-2°C). Weather in December »
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FAQ

What is the coldest month in Fort Atkinson?

With an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 9.7°F (-12.4°C), January is the coldest month.

What is the most humid month in Fort Atkinson?

The months with the highest humidity are January and February, with an average relative humidity of 89%.

What is the driest month in Fort Atkinson?

January is the month with the least rainfall in Fort Atkinson, Iowa. Rain falls for 4.5 days and accumulates 1.1" (28mm) of precipitation.

How much does it rain in Fort Atkinson?

Throughout the year, there are 149 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

When does it snow in Fort Atkinson?

January through May, October through December are months with snowfall in Fort Atkinson, Iowa.

How many days does it snow in Fort Atkinson?

Throughout the year, in Fort Atkinson, Iowa, there are 60.9 snowfall days, and 24.37" (619mm) of snow is accumulated.

What is the month with the least sunshine in Fort Atkinson?

January has the least sunshine of the year, with an average of 3.5h of sunshine.

What are the months with the lowest UV index in Fort Atkinson?

The months with the lowest UV index in Fort Atkinson are January, February, November and December, with an average maximum UV index of 1.

When does it snow the most in Fort Atkinson?

The month with the most snowfall in Fort Atkinson is February, when snow falls for 12.8 days and typically aggregates up to 5.98" (152mm) of snow.

When is Daylight Saving Time (DST) in Fort Atkinson?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Fort Atkinson, Iowa, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

When is the highest UV index in Fort Atkinson?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Fort Atkinson, Iowa.

What is the rainiest month in Fort Atkinson?

The month with the most rainfall is June, when the rain falls for 20.3 days and typically aggregates up to 5.04" (128mm) of precipitation.

When it does not snow in Fort Atkinson?

In Fort Atkinson, Iowa, snow does not fall in June through September.

When are the longest days in Fort Atkinson?

With an average of 15h and 19min of daylight, June has the longest days of the year.

What is the warmest month in Fort Atkinson?

The warmest month in Fort Atkinson, Iowa, is July, with an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 61.9°F (16.6°C).

What month has the most sunshine in Fort Atkinson?

The month with the most sunshine in Fort Atkinson, Iowa, is August, with an average of 9.8h of sunshine.

What is the least humid month in Fort Atkinson?

With an average relative humidity of 76%, October is the least humid month in Fort Atkinson, Iowa.

What is the month with the shortest days in Fort Atkinson?

December has the shortest days of the year in Fort Atkinson, with an average of 9h and 3min of daylight.

Average temperature
Fort Atkinson, IA

Average temperature - Fort Atkinson, IA

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.3°F).

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).

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Average pressure
Fort Atkinson, IA

Average pressure - Fort Atkinson, IA

The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed
Fort Atkinson, IA

Average wind speed - Fort Atkinson, IA

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity
Fort Atkinson, IA

Average humidity - Fort Atkinson, IA

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is October (76%).

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Average rainfall
Fort Atkinson, IA

Average rainfall - Fort Atkinson, IA

The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days
Fort Atkinson, IA

Average rainfall days - Fort Atkinson, IA

The months with the highest number of rainy days are May and June (20.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall
Fort Atkinson, IA

Average snowfall - Fort Atkinson, IA

The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Fort Atkinson, IA

Average snowfall days - Fort Atkinson, IA

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Fort Atkinson, IA

Average daylight / Average sunshine - Fort Atkinson, IA

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 3min).

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days
Fort Atkinson, IA

Average sunshine days - Fort Atkinson, IA

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).

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Average UV index
Fort Atkinson, IA

Average UV index - Fort Atkinson, IA

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, February, November and December (UV index 1).

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Average visibility
Fort Atkinson, IA

Average visibility - Fort Atkinson, IA

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

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