April weather forecastClayton, WI
April
Weather in April
April in Clayton, Wisconsin, is a fresh spring month, with an average temperature fluctuating between 50.5°F (10.3°C) and 34.3°F (1.3°C).Temperature
Clayton sees an increase in average high-temperatures during April, moving from a wintry 37°F (2.8°C) in March to a cool 50.5°F (10.3°C). April nights experience a consistent temperature drop to a cold 34.3°F (1.3°C).Humidity
With an average relative humidity of 76%, April is the least humid month.Rainfall
In Clayton, during April, the rain falls for 14 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Clayton, during the entire year, the rain falls for 128.1 days and collects up to 23.46" (596mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Clayton, during April, snow falls for 5.7 days and regularly aggregates up to 2.91" (74mm) of snow. In Clayton, during the entire year, snow falls for 74.5 days and aggregates up to 24.06" (611mm) of snow.Daylight
The average length of the day in April is 13h and 33min.On the first day of April, sunrise is at 6:47 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:14 pm CDT.
Sunshine
The average sunshine in April is 6.8h.UV index
In Clayton, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Clayton, WI
- Average high temperature in April: 50.5°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in April: 34.3°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in April
Clayton, WI
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Clayton, WI
- Average wind speed in April: 9.6mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in April
Clayton, WI
- Average humidity in April: 76%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Clayton, WI
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in April
Clayton, WI
- Average rainfall days in April: 14 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in April
Clayton, WI
- Average snowfall in April: 2.91"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Clayton, WI
- Average snowfall days in April: 5.7 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Clayton, WI
- Average daylight in April: 13h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 6h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in April
Clayton, WI
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in April
Clayton, WI
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Clayton, WI
- Average cloud cover in April: 54
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in April
Clayton, WI
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).





