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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another subzero cold winter month in Fort Atkinson, Iowa, with an average temperature ranging between max 22.3°F (-5.4°C) and min 9.7°F (-12.4°C). January is the month when Fort Atkinson, Iowa, experiences its coldest temperatures, averaging 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). On the advent of February, Fort Atkinson's average high-temperature exhibits a minor adjustment to a still subzero cold 26.1°F (-3.3°C) 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 an average temperature varying between 41°F (5°C) and 26.8°F (-2.9°C). With the onset of March, Fort Atkinson's average high-temperature witnesses a clear rise, advancing from February's subzero cold 26.1°F (-3.3°C) to a wintry 41°F (5°C). Weather in March »
Weather in April
April in Fort Atkinson, Iowa, is a cool spring month, with an average temperature varying between 37.4°F (3°C) and 54°F (12.2°C). April's arrival sees a rise in the average high-temperature, jumping from March's wintry 41°F (5°C) to a fresh 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 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). May sees a temperature increase, moving from a fresh 54°F (12.2°C) in April to a refreshing 65.7°F (18.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Fort Atkinson, Iowa, with an average temperature varying between 75°F (23.9°C) and 58.6°F (14.8°C). Fort Atkinson in June shows a temperature shift, moving from an average high of a comfortable 65.7°F (18.7°C) in May 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 temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 78.4°F (25.8°C). July proves to be the warmest month, recording an average peak temperature of 78.4°F (25.8°C) and a minimum temperature 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 an average temperature fluctuating between 77.2°F (25.1°C) and 59.4°F (15.2°C). Fort Atkinson's weather, upon August's arrival, documents an average high-temperature of a still warm 77.2°F (25.1°C), nearly identical to the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Fort Atkinson, Iowa, with an average temperature varying between 52°F (11.1°C) and 70.7°F (21.5°C). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 77.2°F (25.1°C) in August to an agreeable 70.7°F (21.5°C). Weather in September »
Weather in October
October, the same as September, in Fort Atkinson, Iowa, is a moderate 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 witnesses a clear 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
November, the last month of the autumn in Fort Atkinson, is also a wintry month, with an average temperature varying between 41.9°F (5.5°C) and 29.3°F (-1.5°C). The average high-temperature exhibits a considerable decrease in November, dropping from a moderate 56.3°F (13.5°C) in October to an icy 41.9°F (5.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Fort Atkinson, Iowa, with temperature in the range of an average low of 18.3°F (-7.6°C) and an average high of 28.4°F (-2°C). A moderate decline in the average high-temperature is seen during December, decreasing from an icy 41.9°F (5.5°C) in November to a freezing cold 28.4°F (-2°C). Weather in December »
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
Fort Atkinson experiences its lowest temperatures in January, with an average peak 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?
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?
The month with the least rainfall is January, when the rain falls for 4.5 days and typically collects 1.1" (28mm) of precipitation.
How many days does it rain?
In Fort Atkinson, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How much does it snow?
Throughout the year, there are 60.9 snowfall days, and 24.37" (619mm) of snow is accumulated.
What is the month with the least sunshine?
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?
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the snowiest month?
February is the month with the most snowfall in Fort Atkinson. Snow falls for 12.8 days and accumulates 5.98" (152mm) of snow.
When is Daylight Saving Time (DST)?
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 are the months with the highest UV index?
May through August, with an average maximum UV index of 5, are months with the highest UV index.
What is the rainiest month?
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?
June through September are months without snowfall.
When are the longest days?
The month with the longest days in Fort Atkinson is June, with an average of 15h and 18min of daylight.
What month is the hottest?
July, noted for its average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 61.9°F (16.6°C), is considered the warmest month.
What month has the most sunshine?
With an average of 9.8h of sunshine, August has the most sunshine of the year.
What is the least humid month?
The least humid month is October, with an average relative humidity of 76%.
What is the month with the shortest days in Fort Atkinson?
With an average of 9h and 6min of daylight, December has the shortest days of the year.
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).
Average pressure
Fort Atkinson, IA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.1"Hg
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).
Average wind speed
Fort Atkinson, IA
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.4mph - Average wind speed in May:
9mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.7mph
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).
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%).
Average rainfall
Fort Atkinson, IA
- Average rainfall in January:
1.1" - Average rainfall in February:
1.26" - Average rainfall in March:
1.81" - Average rainfall in April:
3.39" - Average rainfall in May:
4.06" - Average rainfall in June:
5.04"
The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days
Fort Atkinson, IA
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
10.7 days - Average rainfall days in April:
16.5 days - Average rainfall days in May:
20.3 days - Average rainfall days in June:
20.3 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
14.9 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
8 days - Average rainfall days in December:
6.4 days
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).
Average snowfall
Fort Atkinson, IA
- Average snowfall in January:
5.63" - Average snowfall in February:
5.98" - Average snowfall in March:
2.95" - Average snowfall in April:
2.44" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Fort Atkinson, IA
- Average snowfall days in January:
14.3 days - Average snowfall days in February:
12.8 days - Average snowfall days in March:
8.8 days - Average snowfall days in April:
3.8 days - Average snowfall days in May:
0.4 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1.8 days - Average snowfall days in November:
5.9 days - Average snowfall days in December:
13.1 days
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).
Average daylight / Average sunshine
Fort Atkinson, IA
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 1min
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).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 4min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 1min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 5min
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).
Average sunshine days
Fort Atkinson, IA
- Average sunshine days in January:
14 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
13 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
8.2 days - Average sunshine days in June:
7.1 days
- Average sunshine days in July:
8.6 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
15.6 days - Average sunshine days in November:
16.2 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.1 days).
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).
Average cloud cover
Fort Atkinson, IA
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
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).
Fort Atkinson, Iowa, USA
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