April weather forecastSouth Beloit, IL
April
Weather in April
April in South Beloit, Illinois, is a fresh spring month, with an average temperature varying between 38.7°F (3.7°C) and 55°F (12.8°C).Temperature
South Beloit's transition into April brings a rise in the average high-temperature, moving from a frosty 43.3°F (6.3°C) in March to a cool 55°F (12.8°C). In the month of April, South Beloit records a consistent average low-temperature of 38.7°F (3.7°C).Humidity
April and October, with an average relative humidity of 76%, are the least humid months.Rainfall
In South Beloit, during April, the rain falls for 13.1 days and regularly aggregates up to 1.73" (44mm) of precipitation. In South Beloit, during the entire year, the rain falls for 122.2 days and collects up to 16.42" (417mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 2.1 snowfall days, in April, South Beloit aggregates 0.75" (19mm) of snow. In South Beloit, during the entire year, snow falls for 41.2 days and aggregates up to 8.78" (223mm) of snow.Daylight
In South Beloit, the average length of the day in April is 13h and 25min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:22 pm. On the last day of April, sunrise is at 5:51 am and sunset at 7:55 pm CDT.
Sunshine
In South Beloit, Illinois, the average sunshine in April is 7.2h.UV index
In South Beloit, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In April, a regular UV index of 3 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
South Beloit, IL
- Average high temperature in April: 55°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in April: 38.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in April
South Beloit, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
South Beloit, IL
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in April
South Beloit, IL
- Average humidity in April: 76%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in April
South Beloit, IL
- Average rainfall in April: 1.73"
The wettest month (with the highest rainfall) is June (2.28").
The driest months (with the least rainfall) are February and December (0.67").
Average rainfall days in April
South Beloit, IL
- Average rainfall days in April: 13.1 days
The months with the highest number of rainy days are May and June (15.3 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in April
South Beloit, IL
- Average snowfall in April: 0.75"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
South Beloit, IL
- Average snowfall days in April: 2.1 days
The month with the highest number of snowfall days is January (11.5 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
South Beloit, IL
- Average daylight in April: 13h and 24min
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 6min).
- Average sunshine in April: 7h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in April
South Beloit, IL
- Average sunshine days in April: 14.2 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in April
South Beloit, IL
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
South Beloit, IL
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in April
South Beloit, IL
- 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).





