April weather forecast
Fort Atkinson, IA

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).

Temperature

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). In April, in Fort Atkinson, Iowa, the average low-temperature is 37.4°F (3°C).

Humidity

In April, the average relative humidity is 77%.

Rainfall

In Fort Atkinson, Iowa, during 16.5 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Fort Atkinson, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Fort Atkinson, Iowa, during 3.8 snowfall days, 2.44" (62mm) of snow is typically accumulated. In Fort Atkinson, during the entire year, snow falls for 60.9 days and aggregates up to 24.37" (619mm) of snow.

Daylight

In Fort Atkinson, Iowa, the average length of the day in April is 13h and 26min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:34 pm. On the last day of April, sunrise is at 6:02 am and sunset at 8:07 pm CDT.

Sunshine

In Fort Atkinson, the average sunshine in April is 7.4h.

UV index

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in April transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in April in Fort Atkinson?

In Fort Atkinson, Iowa, the average relative humidity in April is 77%.

How much does it rain in Fort Atkinson in April?

In Fort Atkinson, in April, it is raining for 16.5 days, with typically 3.39" (86mm) of accumulated precipitation.

How much does it snow in Fort Atkinson in April?

In Fort Atkinson, in April, snow falls for 3.8 days, with typically accumulated 2.44" (62mm) of snow.

What is the average length of the day in April in Fort Atkinson?

In Fort Atkinson, Iowa, the average day length in April is 13h and 26min.

When is the sunrise / sunset in April in Fort Atkinson?

In April, on the first day of the month, sunrise is at 6:48 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:07 pm CDT.

How many hours of sunshine does Fort Atkinson have in April?

The average sunshine duration in April is 7.4h.

What is the UV index intensity in April in Fort Atkinson?

The average daily maximum UV index in April in Fort Atkinson, Iowa, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Fort Atkinson, IA

Average temperature in April - Fort Atkinson, IA
  • Average high temperature in April: 54°F

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).

  • Average low temperature in April: 37.4°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 in April
Fort Atkinson, IA

Average pressure in April - Fort Atkinson, IA
  • Average pressure in April: 29.94"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).

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Average wind speed in April
Fort Atkinson, IA

Average wind speed in April - Fort Atkinson, IA
  • Average wind speed in April: 10.4mph

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 in April
Fort Atkinson, IA

Average humidity in April - Fort Atkinson, IA
  • Average humidity in April: 77%

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 in April
Fort Atkinson, IA

Average rainfall in April - Fort Atkinson, IA
  • Average rainfall in April: 3.39"

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 in April
Fort Atkinson, IA

Average rainfall days in April - Fort Atkinson, IA
  • Average rainfall days in April: 16.5 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).

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Average snowfall in April
Fort Atkinson, IA

Average snowfall in April - Fort Atkinson, IA
  • Average snowfall in April: 2.44"

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 in April
Fort Atkinson, IA

Average snowfall days in April - Fort Atkinson, IA
  • Average snowfall days in April: 3.8 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).

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Average daylight in April /
Average sunshine in April
Fort Atkinson, IA

Average daylight in April / Average sunshine in April - Fort Atkinson, IA
  • Average daylight in April: 13h and 26min

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).

  • Average sunshine in April: 7h and 24min

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 in April
Fort Atkinson, IA

Average sunshine days in April - Fort Atkinson, IA
  • Average sunshine days in April: 10.3 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).

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Average UV index in April
Fort Atkinson, IA

Average UV index in April - Fort Atkinson, IA
  • Average UV index in April: 3

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 cloud cover in April
Fort Atkinson, IA

Average cloud cover in April - Fort Atkinson, IA
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in April
Fort Atkinson, IA

Average visibility in April - Fort Atkinson, IA
  • Average visibility in April: 6mi

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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