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 average high-temperature increases in April, moving from a cool 52.3°F (11.3°C) in March to a refreshing 63.7°F (17.6°C). Throughout the April nights, Hillsboro encounters a low-temperature of 46.6°F (8.1°C).Humidity
The average relative humidity in April is 76%.Rainfall
In Hillsboro, Illinois, in April, it is raining for 14.8 days, with typically 2.72" (69mm) of accumulated precipitation. In Hillsboro, during the entire year, the rain falls for 138.5 days and collects up to 24.33" (618mm) of precipitation.Snowfall
In Hillsboro, snow does not fall in April through October.Daylight
In Hillsboro, Illinois, the average length of the day in April is 13h and 16min.On the first day of April in Hillsboro, sunrise is at 6:41 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 7:50 pm CDT.
Sunshine
In April, the average sunshine in Hillsboro, Illinois, is 8.2h.UV index
In April, the average daily maximum UV index in Hillsboro is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the UV index of 4 transforms into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Hillsboro in April?
What is the average humidity in April in Hillsboro?
How many days does it rain in April in Hillsboro?
When it does not snow in Hillsboro?
Does it snow in Hillsboro in April?
How many hours of daylight does Hillsboro have in April?
When are sunrise and sunset in April in Hillsboro?
How many hours of sunshine does Hillsboro have in April?
What is the UV index intensity in April in Hillsboro?
Average temperature in April
Hillsboro, IL
- Average high temperature in April: 63.7°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 (35.4°F).
- Average low temperature in April: 46.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in April
Hillsboro, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Hillsboro, IL
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in April
Hillsboro, 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
Hillsboro, IL
- Average rainfall in April: 2.72"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in April
Hillsboro, IL
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7 days).
Average snowfall in April
Hillsboro, IL
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Hillsboro, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (6.2 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
Hillsboro, IL
- Average daylight in April: 13h and 2min
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 1min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in April
Hillsboro, 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 (11.8 days).
Average UV index in April
Hillsboro, 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
Hillsboro, 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 June and September (Cloud cover 29).
Average visibility in April
Hillsboro, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Hillsboro, Illinois, USA
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