April weather forecastDelafield, WI
April
Weather in April
April in Delafield, Wisconsin, is a cool spring month, with an average temperature varying between 52.7°F (11.5°C) and 37°F (2.8°C).Temperature
April shows a rise in the average high-temperature, moving from March's cold 41.2°F (5.1°C) to a cool 52.7°F (11.5°C). An average low-temperature of 37°F (2.8°C) is recorded during the nights in April in Delafield.Humidity
April is the least humid month, with an average relative humidity of 76%.Rainfall
In Delafield, during April, the rain falls for 13.2 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, in Delafield, Wisconsin, there are 127.5 rainfall days, and 18.94" (481mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Delafield, during April, snow falls for 2.5 days and regularly aggregates up to 0.75" (19mm) of snow. In Delafield, Wisconsin, during the entire year, snow falls for 48.5 days and aggregates up to 11.02" (280mm) of snow.Daylight
The average length of the day in April in Delafield is 13h and 26min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:20 pm. On the last day of April, sunrise is at 5:47 am and sunset at 7:54 pm CDT.
Sunshine
In April, the average sunshine in Delafield is 7.2h.UV index
In Delafield, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 3 in April suggests the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Delafield, WI
- Average high temperature in April: 52.7°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 (24.6°F).
- Average low temperature in April: 37°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in April
Delafield, WI
- Average pressure in April: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Delafield, WI
- Average wind speed in April: 10mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Delafield, WI
- Average humidity in April: 76%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Delafield, WI
- Average rainfall in April: 2.17"
The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in April
Delafield, WI
- Average rainfall days in April: 13.2 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in April
Delafield, WI
- Average snowfall in April: 0.75"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Delafield, WI
- Average snowfall days in April: 2.5 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Delafield, 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 6min).
- Average sunshine in April: 7h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in April
Delafield, WI
- Average sunshine days in April: 13.6 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in April
Delafield, 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 and December (UV index 1).
Average cloud cover in April
Delafield, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in April
Delafield, 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).
