April weather forecastOshkosh, WI

April
Weather in April
April in Oshkosh sees a definitive move towards spring. The temperatures continue to rise, and the days continue to lengthen, providing more daytime. Significant rainfall in April, 2.64" (67mm), is an indication of the ongoing transition from winter to spring. The increase in temperature brings greener landscapes as nature renews itself. Despite frequent rain showers, the weather conditions are still conducive for various outdoor activities.Temperature
The average high-temperature increases in April, moving from a wintry 38.5°F (3.6°C) in March to a fresh 50.2°F (10.1°C). In Oshkosh, April nights cool down to an average of 35.6°F (2°C).Humidity
With an average relative humidity of 76%, April is the least humid month in Oshkosh.Rainfall
In April, in Oshkosh, the rain falls for 14.3 days. Throughout April, 2.64" (67mm) of precipitation is accumulated. In Oshkosh, during the entire year, the rain falls for 126.8 days and collects up to 25.2" (640mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Oshkosh. During 3.7 snowfall days, in April, Oshkosh aggregates 1.73" (44mm) of snow. Throughout the year, in Oshkosh, there are 53.5 snowfall days, and 17.56" (446mm) of snow is accumulated.Daylight
The average length of the day in April in Oshkosh, Wisconsin, is 13h and 29min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:21 pm. On the last day of April, in Oshkosh, sunrise is at 5:45 am and sunset at 7:56 pm CDT.
Sunshine
In Oshkosh, the average sunshine in April is 7.2h.UV index
In Oshkosh, 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 radiation for average individuals.Note: The maximum UV index of 3 during April leads to these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Oshkosh, WI
- Average high temperature in April: 50.2°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in April: 35.6°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in April
Oshkosh, WI
- Average pressure in April: 29.96"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Oshkosh, WI
- Average wind speed in April: 10.5mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in April
Oshkosh, WI
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Oshkosh, WI
- Average rainfall in April: 2.64"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in April
Oshkosh, WI
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in April
Oshkosh, WI
- Average snowfall in April: 1.73"
The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Oshkosh, WI
- Average snowfall days in April: 3.7 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Oshkosh, WI
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 7h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in April
Oshkosh, WI
- Average sunshine days in April: 11.9 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is April (11.9 days).
Average UV index in April
Oshkosh, 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, February, November and December (UV index 1).
Average cloud cover in April
Oshkosh, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in April
Oshkosh, WI
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February and September (5mi).





