April weather forecastByron, WI
April
Weather in April
April is a cool spring month in Byron, Wisconsin, with an average temperature varying between 35.8°F (2.1°C) and 51.1°F (10.6°C).Temperature
The average high-temperature increases in April, moving from a wintry 39°F (3.9°C) in March to a fresh 51.1°F (10.6°C). An average nighttime temperature of 35.8°F (2.1°C) is recorded during April.Humidity
The least humid month is April, with an average relative humidity of 76%.Rainfall
In April, the rain falls for 11 days. Throughout April, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Byron, there are 90.7 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Byron. April is the last month it regularly snows. During 2 snowfall days, in April, Byron aggregates 0.31" (8mm) of snow. Throughout the year, there are 42 snowfall days, and 4.25" (108mm) of snow is accumulated.Daylight
In Byron, the average length of the day in April is 13h and 28min.On the first day of April, sunrise is at 6:33 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:55 pm CDT.
Sunshine
In April, the average sunshine is 7.3h.UV index
In Byron, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 3 in April translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Byron, WI
- Average high temperature in April: 51.1°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in April: 35.8°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in April
Byron, 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
Byron, WI
- 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 (7.1mph).
Average humidity in April
Byron, WI
- Average humidity in April: 76%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Byron, WI
- Average rainfall in April: 0.75"
The wettest months (with the highest rainfall) are June and October (0.94").
The driest months (with the least rainfall) are January and February (0.31").
Average rainfall days in April
Byron, WI
- Average rainfall days in April: 11 days
The months with the highest number of rainy days are April and July (11 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in April
Byron, WI
- Average snowfall in April: 0.31"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Byron, WI
- Average snowfall days in April: 2 days
The month with the highest number of snowfall days is January (10.5 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
Byron, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in April
Byron, WI
- Average sunshine days in April: 15.9 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is June (15.6 days).
Average UV index in April
Byron, 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
Byron, 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
Byron, WI
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January and September (5mi).
