Climate and monthly weather forecast
Fort Atkinson, IA

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Weather in January

January, like December, is another subzero cold winter month in Fort Atkinson, Iowa, with temperature in the range of an average low of 9.7°F (-12.4°C) and an average high of 22.3°F (-5.4°C). During the coldest month, January, temperatures average a high of 22.3°F (-5.4°C) and a low 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 an average temperature varying between 12.7°F (-10.7°C) and 26.1°F (-3.3°C). Fort Atkinson, Iowa, experiences an average high-temperature of a still freezing cold 26.1°F (-3.3°C) in February, subtly different from January's 22.3°F (-5.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Fort Atkinson, Iowa, with temperature in the range of an average high of 41°F (5°C) and an average low of 26.8°F (-2.9°C). March signals a significant shift in the average high-temperature, soaring from February's freezing cold 26.1°F (-3.3°C) to a cold 41°F (5°C). Weather in March »

Weather in April

April in Fort Atkinson, Iowa, is a fresh spring month, with an average temperature varying between 37.4°F (3°C) and 54°F (12.2°C). The onset of April brings a rise in the average high-temperature, elevating from a wintry 41°F (5°C) in March to a cool 54°F (12.2°C). Weather in April »

Weather in May

May, the last month of the spring in Fort Atkinson, is a refreshing month, with an average temperature varying between 48.7°F (9.3°C) and 65.7°F (18.7°C). As May arrives, a rise in the average high-temperature is observed, moving from a fresh 54°F (12.2°C) in April to an enjoyable 65.7°F (18.7°C). Weather in May »

Weather in June

June, the first month of the summer in Fort Atkinson, is a moderately hot month, with an average temperature ranging between min 58.6°F (14.8°C) and max 75°F (23.9°C). Fort Atkinson's June weather shows an increase in high-temperatures, moving from May's comfortable 65.7°F (18.7°C) to a moderately hot 75°F (23.9°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Fort Atkinson, Iowa, with an average temperature varying between 78.4°F (25.8°C) and 61.9°F (16.6°C). July is Fort Atkinson's warmest month, registering average high temperatures of 78.4°F (25.8°C) and lows of 61.9°F (16.6°C). Weather in July »

Weather in August

August, the last month of the summer in Fort Atkinson, is also a moderately hot month, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 59.4°F (15.2°C). Fort Atkinson registers an average high-temperature of a still warm 77.2°F (25.1°C) at the commencement of August, closely related to the preceding month. 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 varying between 70.7°F (21.5°C) and 52°F (11.1°C). A modest decline in the average high-temperature is seen during September, decreasing from a warm 77.2°F (25.1°C) in August to a pleasant 70.7°F (21.5°C). Weather in September »

Weather in October

October, the same as September, in Fort Atkinson, Iowa, is another mild autumn month, with an average temperature ranging between max 56.3°F (13.5°C) and min 41.2°F (5.1°C). With the onset of October, Fort Atkinson's average high-temperature experiences a noticeable drop, receding from September's agreeable 70.7°F (21.5°C) to a mild 56.3°F (13.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Fort Atkinson, Iowa, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 41.9°F (5.5°C). Fort Atkinson's November weather is characterized by a distinct downswing in high-temperatures, falling from October's moderate 56.3°F (13.5°C) 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 temperature in the range of an average high of 28.4°F (-2°C) and an average low of 18.3°F (-7.6°C). Fort Atkinson's average high-temperature decreases in December, falling from a wintry 41.9°F (5.5°C) in November to a subzero cold 28.4°F (-2°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Fort Atkinson?

January is the month when Fort Atkinson experiences its coldest temperatures, averaging a high of 22.3°F (-5.4°C) and a low of 9.7°F (-12.4°C).

What are the most humid months in Fort Atkinson?

January and February, with an average relative humidity of 89%, are most humid months.

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?

In Fort Atkinson, Iowa, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.

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, 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?

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

What is the month with the lowest UV index in Fort Atkinson?

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

What is the snowiest month 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 10. 2024, at 2:00 am, Daylight Saving Time starts in Fort Atkinson, 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.

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 wettest month in Fort Atkinson?

The month with the most rainfall in Fort Atkinson 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?

June through September are months without snowfall in Fort Atkinson.

When are the longest days in Fort Atkinson?

The month with the longest days in Fort Atkinson is June, with an average of 15h and 18min of daylight.

What are the warmest months in Fort Atkinson?

July registers as the month with the average highest temperatures in Fort Atkinson, reaching 78.4°F (25.8°C) at its peak and 61.9°F (16.6°C) at the lowest.

What month has the most sunshine in Fort Atkinson?

August has the most sunshine of the year, with an average of 9.8h of sunshine.

What is the least humid month in Fort Atkinson?

October is the least humid month, with an average relative humidity of 76%.

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 6min 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 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

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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Fort Atkinson, Iowa, USA

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