Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
With the onset of April, the average high-temperature slightly shifts from March's icy 40.5°F (4.7°C) to a cool 52.5°F (11.4°C). Lake Delton's temperature tends to fall to an average low of 36.3°F (2.4°C) during the nights of April.Humidity
April is the least humid month, with an average relative humidity of 76%.Rainfall
In Lake Delton, in April, during 9.9 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, there are 94.1 rainfall days, and 8.46" (215mm) of precipitation is accumulated.Snowfall
Months with snowfall in Lake Delton are January through April, October through December. April is the last month it regularly snows. During 2.3 snowfall days, in April, Lake Delton aggregates 0.39" (10mm) of snow. Throughout the year, there are 43.9 snowfall days, and 6.02" (153mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 28min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:26 pm. On the last day of April, in Lake Delton, Wisconsin, sunrise is at 5:51 am and sunset at 8:00 pm CDT.
Sunshine
In Lake Delton, the average sunshine in April is 7.2h.UV index
In Lake Delton, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during April translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Lake Delton?
What is the least humid month in Lake Delton?
What is the average humidity in April in Lake Delton?
How many days does it rain in April in Lake Delton?
What is the last month it snows in Lake Delton?
What is the average length of the day in April in Lake Delton?
When are sunrise and sunset in April in Lake Delton?
How many hours of sunshine does Lake Delton have in April?
How high is the UV index in April in Lake Delton?
Average temperature in April
Lake Delton, WI
- Average high temperature in April: 52.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in April: 36.3°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in April
Lake Delton, WI
- Average pressure in April: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Lake Delton, WI
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in April
Lake Delton, WI
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Lake Delton, WI
- Average rainfall in April: 0.83"
The wettest month (with the highest rainfall) is June (1.18").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in April
Lake Delton, WI
- Average rainfall days in April: 9.9 days
The month with the highest number of rainy days is June (13.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in April
Lake Delton, WI
- Average snowfall in April: 0.39"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Lake Delton, WI
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Lake Delton, WI
- Average daylight in April: 13h and 3min
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 1min
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 12min).
Average sunshine days in April
Lake Delton, WI
- Average sunshine days in April: 16.1 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in April
Lake Delton, 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
Lake Delton, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Lake Delton, WI
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Lake Delton, Wisconsin, USA
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