April weather forecastBelvidere, IL
April
Weather in April
April is a refreshing spring month in Belvidere, Illinois, with an average temperature varying between 55.6°F (13.1°C) and 39°F (3.9°C).Temperature
In Belvidere, stepping into April brings a temperature increase, moving up from March's chilly 44.1°F (6.7°C) to a mild 55.6°F (13.1°C). In Belvidere, in April, the average low-temperature is a wintry 39°F (3.9°C).Humidity
The average relative humidity in April is 76%.Rainfall
In Belvidere, during April, the rain falls for 16.5 days and regularly aggregates up to 3.58" (91mm) of precipitation. In Belvidere, during the entire year, the rain falls for 154 days and collects up to 30.47" (774mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Belvidere. During 1.7 snowfall days, in April, Belvidere aggregates 1.34" (34mm) of snow. Throughout the year, there are 45.3 snowfall days, and 17.28" (439mm) of snow is accumulated.Daylight
In Belvidere, the average length of the day in April is 13h and 24min.On the first day of April, sunrise is at 6:36 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 7:54 pm CDT.
Sunshine
In April, the average sunshine is 7.5h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Belvidere, IL
- Average high temperature in April: 55.6°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 (25.9°F).
- Average low temperature in April: 39°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in April
Belvidere, 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 (29.92"Hg).
Average wind speed in April
Belvidere, IL
- Average wind speed in April: 10mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in April
Belvidere, IL
- Average humidity in April: 76%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Belvidere, IL
- Average rainfall in April: 3.58"
The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in April
Belvidere, IL
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in April
Belvidere, IL
- Average snowfall in April: 1.34"
The month with the highest snowfall is January (5.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Belvidere, IL
- Average snowfall days in April: 1.7 days
The month with the highest number of snowfall days is January (12.6 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
Belvidere, 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 12min).
- Average sunshine in April: 7h and 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Belvidere, IL
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in April
Belvidere, 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, November and December (UV index 1).
Average cloud cover in April
Belvidere, IL
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in April
Belvidere, 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).
