April weather forecastRiver Grove, IL
April
Weather in April
April is a fresh spring month in River Grove, Illinois, with an average temperature ranging between max 53.2°F (11.8°C) and min 40.5°F (4.7°C).Temperature
An increase in the average high-temperature marks April, moving from March's frosty 43.2°F (6.2°C) to a cool 53.2°F (11.8°C). River Grove temperatures generally rest at a low of 40.5°F (4.7°C) during the April nights.Humidity
In April, the average relative humidity is 75%.Rainfall
In April, in River Grove, the rain falls for 16.8 days. Throughout April, 3.62" (92mm) of precipitation is accumulated. Throughout the year, there are 157.8 rainfall days, and 33.7" (856mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In River Grove, during April, snow falls for 1.8 days and regularly aggregates up to 1.97" (50mm) of snow. Throughout the year, in River Grove, there are 40.3 snowfall days, and 16.81" (427mm) of snow is accumulated.Daylight
The average length of the day in April in River Grove is 13h and 23min.On the first day of April, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:49 pm CDT.
Sunshine
In River Grove, the average sunshine in April is 7.8h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
River Grove, IL
- Average high temperature in April: 53.2°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in April: 40.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in April
River Grove, 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
River Grove, IL
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in April
River Grove, IL
- Average humidity in April: 75%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
River Grove, IL
- Average rainfall in April: 3.62"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is December (1.57").
Average rainfall days in April
River Grove, IL
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in April
River Grove, IL
- Average snowfall in April: 1.97"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
River Grove, IL
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
River Grove, 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 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
River Grove, IL
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is December (16.7 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in April
River Grove, 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
River Grove, IL
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
River Grove, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
