April weather forecastOreana, IL
April
Weather in April
April is a comfortable spring month in Oreana, Illinois, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 61.9°F (16.6°C).Temperature
Oreana's weather in April shows a rise in the average high-temperature, moving up from March's fresh 50.5°F (10.3°C) to a comfortable 61.9°F (16.6°C). Oreana, in April, experiences an average temperature of 46°F (7.8°C) at night.Humidity
In April, the average relative humidity is 74%.Rainfall
In Oreana, during April, the rain falls for 13.6 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 130.2 rainfall days, and 16.34" (415mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Oreana. April is the last month it regularly snows in Oreana. During 0.5 snowfall days, in April, Oreana aggregates 0.04" (1mm) of snow. In Oreana, during the entire year, snow falls for 23.1 days and aggregates up to 5.67" (144mm) of snow.Daylight
In April, the average length of the day is 13h and 17min.On the first day of April, sunrise is at 6:38 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 7:49 pm CDT.
Sunshine
In April, the average sunshine is 8.2h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In April, a daily maximum UV index of 4 leads to the following instructions:
Exercise prevention - Warding off sunburn is urged. To guard against the harmful effects of the Sun, minimize exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Oreana, IL
- Average high temperature in April: 61.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in April: 46°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in April
Oreana, 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
Oreana, IL
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in April
Oreana, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Oreana, IL
- Average rainfall in April: 1.93"
The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").
Average rainfall days in April
Oreana, IL
- Average rainfall days in April: 13.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in April
Oreana, IL
- Average snowfall in April: 0.04"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Oreana, IL
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Oreana, IL
- Average daylight in April: 13h and 18min
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 24min).
- Average sunshine in April: 8h and 12min
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 6min).
Average sunshine days in April
Oreana, IL
- Average sunshine days in April: 14.5 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in April
Oreana, 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
Oreana, IL
- Average cloud cover in April: 44
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in April
Oreana, 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).





