April weather forecastFort Atkinson, IA
April
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).Temperature
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). An average low-temperature of 37.4°F (3°C) is noted during the nights in April.Humidity
The average relative humidity in April is 77%.Rainfall
In Fort Atkinson, in April, during 16.5 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Fort Atkinson, Iowa, during the entire year, the rain falls for 149 days and collects up to 30.59" (777mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Fort Atkinson, in April, snow falls for 3.8 days, with typically accumulated 2.44" (62mm) of snow. Throughout the year, there are 60.9 snowfall days, and 24.37" (619mm) of snow is accumulated.Daylight
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 6:01 am and sunset at 8:08 pm CDT.
Sunshine
In Fort Atkinson, the average sunshine in April is 7.4h.UV index
In Fort Atkinson, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Undertake precautions - It is suggested to shield oneself from sunburn. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in April /
Average sunshine in April
Fort Atkinson, IA
- Average daylight in April: 13h and 24min
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 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).
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).
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).
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).
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).
