April weather forecastSpring Valley, IL
April
Weather in April
April is a mild spring month in Spring Valley, Illinois, with an average temperature fluctuating between 59°F (15°C) and 42.4°F (5.8°C).Temperature
The onset of April brings a temperature shift, with the average high-temperature moving from a chilly 47.1°F (8.4°C) in March to a mild 59°F (15°C). Spring Valley witnesses a consistent average low-temperature of 42.4°F (5.8°C) throughout April.Humidity
In Spring Valley, the average relative humidity in April is 74%.Rainfall
In April, the rain falls for 17.1 days. Throughout April, 3.82" (97mm) of precipitation is accumulated. In Spring Valley, during the entire year, the rain falls for 152.7 days and collects up to 30.79" (782mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.4 snowfall days, in April, Spring Valley aggregates 1.22" (31mm) of snow. In Spring Valley, during the entire year, snow falls for 39.5 days and aggregates up to 15.31" (389mm) of snow.Daylight
In Spring Valley, the average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:22 pm. On the last day of April, sunrise is at 5:54 am and sunset at 7:53 pm CDT.
Sunshine
In April, the average sunshine is 7.9h.UV index
In Spring Valley, Illinois, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 3 suggests these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Spring Valley, IL
- Average high temperature in April: 59°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in April
Spring Valley, 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
Spring Valley, IL
- Average wind speed in April: 10.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Spring Valley, 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
Spring Valley, IL
- Average rainfall in April: 3.82"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").
Average rainfall days in April
Spring Valley, IL
- Average rainfall days in April: 17.1 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in April
Spring Valley, IL
- Average snowfall in April: 1.22"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Spring Valley, IL
- Average snowfall days in April: 1.4 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Spring Valley, IL
- Average daylight in April: 13h and 24min
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 months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Spring Valley, IL
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in April
Spring Valley, IL
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Spring Valley, 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
Spring Valley, 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).
