April weather forecastHillside, IL
April
Weather in April
April is a cool spring month in Hillside, Illinois, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 40.6°F (4.8°C).Temperature
April brings an increase in the average high-temperature, progressing from a frosty 44.2°F (6.8°C) in March to a cool 55.2°F (12.9°C). Throughout April, an average low-temperature of 40.6°F (4.8°C) is expected.Humidity
The average relative humidity in April in Hillside, Illinois, is 74%.Rainfall
In Hillside, in April, it is raining for 15.8 days, with typically 2.76" (70mm) of accumulated precipitation. In Hillside, during the entire year, the rain falls for 149.4 days and collects up to 25.08" (637mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Hillside, Illinois, during April, snow falls for 2.3 days and regularly aggregates up to 2.01" (51mm) of snow. In Hillside, Illinois, during the entire year, snow falls for 45.8 days and aggregates up to 14.25" (362mm) of snow.Daylight
In April, the average length of the day is 13h and 23min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of April, sunrise is at 5:47 am and sunset at 7:49 pm CDT.
Sunshine
In Hillside, Illinois, the average sunshine in April is 7.6h.UV index
In Hillside, Illinois, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 3 in April translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Hillside, IL
- Average high temperature in April: 55.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in April: 40.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in April
Hillside, 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
Hillside, IL
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Hillside, IL
- Average humidity in April: 74%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Hillside, IL
- Average rainfall in April: 2.76"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in April
Hillside, IL
- Average rainfall days in April: 15.8 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in April
Hillside, IL
- Average snowfall in April: 2.01"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Hillside, IL
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Hillside, 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 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Hillside, IL
- Average sunshine days in April: 11 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in April
Hillside, 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
Hillside, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Hillside, 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).
