April weather forecastHillcrest, IL
April
Weather in April
April in Hillcrest, Illinois, is a mild spring month, with an average temperature ranging between max 56.8°F (13.8°C) and min 40.3°F (4.6°C).Temperature
April's arrival brings a change in high-temperatures, moving from a frosty 44.4°F (6.9°C) in March to a mild 56.8°F (13.8°C). Hillcrest experiences an average low-temperature of 40.3°F (4.6°C) in the month of April.Humidity
In Hillcrest, the average relative humidity in April is 75%.Rainfall
In Hillcrest, Illinois, in April, it is raining for 13.8 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 124.5 rainfall days, and 14.49" (368mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Hillcrest. During 1 snowfall days, in April, Hillcrest aggregates 0.28" (7mm) of snow. Throughout the year, in Hillcrest, there are 37.1 snowfall days, and 6.14" (156mm) of snow is accumulated.Daylight
In Hillcrest, Illinois, the average length of the day in April is 13h and 23min.On the first day of April in Hillcrest, Illinois, sunrise is at 6:37 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:54 pm CDT.
Sunshine
In April, the average sunshine in Hillcrest is 7.4h.UV index
In Hillcrest, 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 the ordinary person.Note: An average UV index of 3 in April transforms into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Hillcrest, IL
- Average high temperature in April: 56.8°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 (27°F).
- Average low temperature in April: 40.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in April
Hillcrest, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Hillcrest, IL
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Hillcrest, IL
- Average humidity in April: 75%
The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (74%).
Average rainfall in April
Hillcrest, IL
- Average rainfall in April: 1.5"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in April
Hillcrest, IL
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in April
Hillcrest, IL
- Average snowfall in April: 0.28"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Hillcrest, IL
- Average snowfall days in April: 1 days
The month with the highest number of snowfall days is January (10.3 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
Hillcrest, 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 24min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Hillcrest, IL
- Average sunshine days in April: 14.2 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in April
Hillcrest, IL
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Hillcrest, IL
- Average cloud cover in April: 51
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in April
Hillcrest, IL
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
