April weather forecastSeymour, WI
April
Weather in April
April is a fresh spring month in Seymour, Wisconsin, with an average temperature ranging between max 50.5°F (10.3°C) and min 35.2°F (1.8°C).Temperature
Seymour's weather in April presents a rise in the average high-temperature, moving from a cold 38.7°F (3.7°C) in March to a fresh 50.5°F (10.3°C). In Seymour, April nights witness a steady temperature drop to an icy 35.2°F (1.8°C).Humidity
April and May, with an average relative humidity of 76%, are the least humid months.Rainfall
In Seymour, in April, during 13.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 125.3 rainfall days, and 24.84" (631mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Seymour, in April, during 3.3 snowfall days, 2.56" (65mm) of snow is typically accumulated. Throughout the year, there are 55.6 snowfall days, and 22.28" (566mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 31min.On the first day of April in Seymour, sunrise is at 6:32 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:57 pm CDT.
Sunshine
In April, the average sunshine is 7.2h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In April, the UV index of 3 transforms into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Seymour, WI
- Average high temperature in April: 50.5°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in April: 35.2°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in April
Seymour, WI
- Average pressure in April: 29.97"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Seymour, WI
- Average wind speed in April: 9.8mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in April
Seymour, WI
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in April
Seymour, WI
- Average rainfall in April: 2.56"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in April
Seymour, WI
- Average rainfall days in April: 13.5 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in April
Seymour, WI
- Average snowfall in April: 2.56"
The month with the highest snowfall is February (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Seymour, WI
- Average snowfall days in April: 3.3 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Seymour, WI
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in April
Seymour, WI
- Average sunshine days in April: 13.2 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in April
Seymour, WI
- 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, November and December (UV index 1).
Average cloud cover in April
Seymour, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in April
Seymour, WI
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





