April weather forecastHenry, IL
April
Weather in April
April is a refreshing spring month in Henry, Illinois, with an average temperature ranging between min 43°F (6.1°C) and max 59.4°F (15.2°C).Temperature
April's arrival brings a temperature shift, moving from a frosty 47.7°F (8.7°C) in March to a refreshing 59.4°F (15.2°C). During the month of April, the temperature generally drops to a low average of 43°F (6.1°C).Humidity
In April, the average relative humidity is 74%.Rainfall
In Henry, in April, during 17 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, there are 151.3 rainfall days, and 30.16" (766mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.3 snowfall days, in April, Henry aggregates 1.69" (43mm) of snow. In Henry, Illinois, during the entire year, snow falls for 36.7 days and aggregates up to 14.09" (358mm) of snow.Daylight
The average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:53 pm CDT.
Sunshine
In Henry, the average sunshine in April is 7.9h.UV index
In Henry, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during April leads to these instructions:
Take necessary precautions - Defending against sun damage is advocated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Henry, IL
- Average high temperature in April: 59.4°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in April: 43°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in April
Henry, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Henry, IL
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Henry, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Henry, IL
- Average rainfall in April: 3.7"
The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are January and December (1.57").
Average rainfall days in April
Henry, IL
- Average rainfall days in April: 17 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in April
Henry, IL
- Average snowfall in April: 1.69"
The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Henry, IL
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (11.2 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
Henry, IL
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Henry, IL
- Average sunshine days in April: 10.8 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in April
Henry, IL
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Henry, IL
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in April
Henry, IL
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
