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
Wilmette's weather in April presents a rise in the average high-temperature, moving from a cold 40.8°F (4.9°C) in March to a frosty 49.8°F (9.9°C). During April, Wilmette consistently records a temperature low averaging an icy 39.7°F (4.3°C).Humidity
In April, the average relative humidity in Wilmette is 77%.Rainfall
In Wilmette, in April, it is raining for 16.3 days, with typically 3.39" (86mm) of accumulated precipitation. Throughout the year, there are 154.1 rainfall days, and 33.31" (846mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Wilmette. During 2 snowfall days, in April, Wilmette aggregates 1.69" (43mm) of snow. Throughout the year, there are 40.5 snowfall days, and 12.76" (324mm) of snow is accumulated.Daylight
In Wilmette, the average length of the day in April is 13h and 23min.On the first day of April in Wilmette, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:49 pm CDT.
Sunshine
In April, the average sunshine is 7.7h.UV index
In April, the average daily maximum UV index in Wilmette is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 3 during April leads to these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
What is the usual temperature for Wilmette in April?
What is the average humidity in April in Wilmette?
How many days does it rain in April in Wilmette?
What is the last month it snows in Wilmette?
How many hours of daylight does Wilmette have in April?
When are sunrise and sunset in April in Wilmette?
How many hours of sunshine does Wilmette have in April?
What is the UV index reading in April in Wilmette?
Average temperature in April
Wilmette, IL
- Average high temperature in April: 49.8°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in April: 39.7°F
The months with the highest average low temperature are July and August (68°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Wilmette, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Wilmette, IL
- Average wind speed in April: 11.3mph
The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).
Average humidity in April
Wilmette, IL
- Average humidity in April: 77%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Wilmette, IL
- Average rainfall in April: 3.39"
The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is December (1.38").
Average rainfall days in April
Wilmette, IL
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in April
Wilmette, IL
- Average snowfall in April: 1.69"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Wilmette, IL
- Average snowfall days in April: 2 days
The month with the highest number of snowfall days is January (11.6 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
Wilmette, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Wilmette, IL
- Average sunshine days in April: 11.2 days
The month with the most sunshine days is December (15.3 days).
The months with the least sunshine days are June and July (10.9 days).
Average UV index in April
Wilmette, IL
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Wilmette, IL
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in April
Wilmette, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Wilmette, Illinois, USA
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