April weather forecastHettick, IL
April
Weather in April
April in Hettick, Illinois, is an enjoyable spring month, with an average temperature fluctuating between 46.4°F (8°C) and 63.9°F (17.7°C).Temperature
The onset of April marks an increase in the average high-temperature, moving from a cool 52.2°F (11.2°C) in March to a refreshing 63.9°F (17.7°C). The average low-temperature during April nights is a chilly 46.4°F (8°C).Humidity
In April, the average relative humidity is 76%.Rainfall
In Hettick, in April, during 14.6 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, in Hettick, there are 138.2 rainfall days, and 23.31" (592mm) of precipitation is accumulated.Snowfall
In Hettick, snow does not fall in April through October.Daylight
The average length of the day in April in Hettick, Illinois, is 13h and 16min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:24 pm. On the last day of April, in Hettick, sunrise is at 6:01 am and sunset at 7:53 pm CDT.
Sunshine
In Hettick, the average sunshine in April is 8.4h.UV index
The average daily maximum UV index in April in Hettick is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 4 in April, converts into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Hettick, IL
- Average high temperature in April: 63.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in April: 46.4°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in April
Hettick, 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
Hettick, IL
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in April
Hettick, 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
Hettick, IL
- Average rainfall in April: 2.64"
The wettest month (with the highest rainfall) is June (3.07").
The driest months (with the least rainfall) are January and February (1.22").
Average rainfall days in April
Hettick, IL
- Average rainfall days in April: 14.6 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in April
Hettick, IL
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Hettick, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (6.3 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
Hettick, 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 24min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Hettick, IL
- Average sunshine days in April: 14 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in April
Hettick, 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
Hettick, 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 August and September (Cloud cover 29).
Average visibility in April
Hettick, 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).





