Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The commencement of April sees a shift in the average high-temperature, moving from a frosty 47.8°F (8.8°C) in March to a mild 59.5°F (15.3°C). The nighttime temperature, during April, averages of 43.7°F (6.5°C).Humidity
In Onarga, Illinois, the average relative humidity in April is 74%.Rainfall
In Onarga, Illinois, during April, the rain falls for 13.4 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 130.7 rainfall days, and 17.13" (435mm) of precipitation is accumulated.Snowfall
Months with snowfall in Onarga are January through April, November and December. April is the last month it regularly snows. During 0.8 snowfall days, in April, Onarga aggregates 0.79" (20mm) of snow. Throughout the year, in Onarga, Illinois, there are 30.7 snowfall days, and 8.19" (208mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 20min.On the first day of April, sunrise is at 6:34 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 7:47 pm CDT.
Sunshine
The average sunshine in April in Onarga is 7.8h.UV index
The average daily maximum UV index in April in Onarga is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 3 in April translates into this advice:
Ensure safety - Recommendations to avert sunburn are presented. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Onarga?
What is the average humidity in April in Onarga?
How much does it rain in Onarga in April?
What is the last month it snows in Onarga?
What is the average length of the day in April in Onarga?
When are sunrise and sunset in April in Onarga?
How many hours of sunshine does Onarga have in April?
How high is the UV index in April in Onarga?
Average temperature in April
Onarga, IL
- Average high temperature in April: 59.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in April: 43.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in April
Onarga, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Onarga, IL
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in April
Onarga, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Onarga, IL
- Average rainfall in April: 1.93"
The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January, February and December (0.91").
Average rainfall days in April
Onarga, IL
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in April
Onarga, IL
- Average snowfall in April: 0.79"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Onarga, IL
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (9.6 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
Onarga, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Onarga, IL
- Average sunshine days in April: 13.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in April
Onarga, IL
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Onarga, IL
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in April
Onarga, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Onarga, Illinois, USA
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