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
April's arrival brings a change in high-temperatures, moving from an icy 37.2°F (2.9°C) in March to a cool 50.2°F (10.1°C). During the month of April, Island Lake anticipates a mean low-temperature of 33.4°F (0.8°C).Humidity
The average relative humidity in April is 77%.Rainfall
In April, the rain falls for 15 days. Throughout April, 2.95" (75mm) of precipitation is accumulated. Throughout the year, there are 137.4 rainfall days, and 26.26" (667mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Island Lake, in April, during 6.8 snowfall days, 3.82" (97mm) of snow is typically accumulated. In Island Lake, during the entire year, snow falls for 84 days and aggregates up to 33.46" (850mm) of snow.Daylight
In April, the average length of the day is 13h and 33min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:34 pm. On the last day of April, sunrise is at 5:54 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in April is 7h.UV index
In Island Lake, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In April, a daily maximum UV index of 3 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How many days does it rain in April?
How many days does it snow in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April in Island Lake?
Average temperature in April
Island Lake, WI
- Average high temperature in April: 50.2°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in April: 33.4°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in April
Island Lake, 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 (29.89"Hg).
Average wind speed in April
Island Lake, WI
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in April
Island Lake, WI
- Average humidity in April: 77%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (76%).
Average rainfall in April
Island Lake, WI
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in April
Island Lake, WI
- Average rainfall days in April: 15 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (3.7 days).
Average snowfall in April
Island Lake, WI
- Average snowfall in April: 3.82"
The month with the highest snowfall is February (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Island Lake, WI
- Average snowfall days in April: 6.8 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Island Lake, WI
- Average daylight in April: 13h and 3min
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: 7h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).
Average sunshine days in April
Island Lake, WI
- Average sunshine days in April: 9.7 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in April
Island Lake, 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
Island Lake, WI
- Average cloud cover in April: 54
The months with the most cloud cover are January and February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in April
Island Lake, WI
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Island Lake, Wisconsin, USA
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