April weather forecastHarvel, IL
April
Weather in April
April is a comfortable spring month in Harvel, Illinois, with temperature in the range of an average low of 46.6°F (8.1°C) and an average high of 63.3°F (17.4°C).Temperature
The beginning of April marks a shift in the average high-temperature, moving from March's fresh 51.8°F (11°C) to a comfortable 63.3°F (17.4°C). Harvel, during the month of April, experiences an average low-temperature of 46.6°F (8.1°C).Humidity
The average relative humidity in April in Harvel is 76%.Rainfall
In Harvel, during April, the rain falls for 14.7 days and regularly aggregates up to 3.15" (80mm) of precipitation. Throughout the year, there are 145.5 rainfall days, and 27.44" (697mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.2 snowfall days, in April, Harvel aggregates 0.04" (1mm) of snow. In Harvel, during the entire year, snow falls for 23.9 days and aggregates up to 8.58" (218mm) of snow.Daylight
In Harvel, Illinois, the average length of the day in April is 13h and 16min.On the first day of April, sunrise is at 6:41 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 7:51 pm CDT.
Sunshine
The average sunshine in April in Harvel, Illinois, is 8.3h.UV index
In Harvel, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In April, the maximum UV index of 4 translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Harvel, IL
- Average high temperature in April: 63.3°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in April: 46.6°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in April
Harvel, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Harvel, IL
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in April
Harvel, IL
- Average humidity in April: 76%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Harvel, IL
- Average rainfall in April: 3.15"
The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in April
Harvel, IL
- Average rainfall days in April: 14.7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in April
Harvel, IL
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Harvel, IL
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (7.4 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
Harvel, IL
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Harvel, IL
- Average sunshine days in April: 13.1 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in April
Harvel, IL
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Harvel, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July and September (Cloud cover 29).
Average visibility in April
Harvel, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
