April weather forecastBlue River, WI
April
Weather in April
April in Blue River, Wisconsin, is a fresh spring month, with an average temperature ranging between min 37.2°F (2.9°C) and max 54.1°F (12.3°C).Temperature
April shows a rise in the average high-temperature, moving from March's icy 41.9°F (5.5°C) to a cool 54.1°F (12.3°C). April in Blue River generally records an average low-temperature of 37.2°F (2.9°C).Humidity
April and October, with an average relative humidity of 77%, are the least humid months in Blue River.Rainfall
In April, in Blue River, the rain falls for 15.7 days. Throughout April, 2.91" (74mm) of precipitation is accumulated. Throughout the year, in Blue River, there are 142.4 rainfall days, and 28.66" (728mm) of precipitation is accumulated.Snowfall
Months with snowfall in Blue River are January through April, October through December. April is the last month it regularly snows. During 3 snowfall days, in April, Blue River aggregates 1.61" (41mm) of snow. Throughout the year, in Blue River, there are 60.2 snowfall days, and 22.13" (562mm) of snow is accumulated.Daylight
In Blue River, the average length of the day in April is 13h and 26min.On the first day of April, sunrise is at 6:42 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:03 pm CDT.
Sunshine
In Blue River, the average sunshine in April 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 moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 in April translates into these instructions:
Take precautions - Protection against sun damage is advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Blue River, WI
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in April: 37.2°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in April
Blue River, WI
- Average pressure in April: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Blue River, WI
- Average wind speed in April: 9.4mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in April
Blue River, WI
- Average humidity in April: 77%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in April
Blue River, WI
- Average rainfall in April: 2.91"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in April
Blue River, WI
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in April
Blue River, WI
- Average snowfall in April: 1.61"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Blue River, WI
- Average snowfall days in April: 3 days
The month with the highest number of snowfall days is January (15.7 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
Blue River, WI
- 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 0min).
- Average sunshine in April: 7h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in April
Blue River, WI
- Average sunshine days in April: 10.8 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in April
Blue River, 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
Blue River, WI
- Average cloud cover in April: 51
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Blue River, WI
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).





