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
An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a frosty 45.5°F (7.5°C) to a refreshing 56.7°F (13.7°C). Olympia Fields experiences a mean temperature of 41.7°F (5.4°C) during April nights.Humidity
The average relative humidity in April is 75%.Rainfall
In Olympia Fields, in April, during 16.8 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. Throughout the year, in Olympia Fields, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.9 snowfall days, in April, Olympia Fields aggregates 1.97" (50mm) of snow. Throughout the year, there are 44.6 snowfall days, and 16.46" (418mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 22min.On the first day of April, sunrise is at 6:32 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:47 pm CDT.
Sunshine
The average sunshine in April is 7.6h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 3 during April translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. 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
What is the temperature in April?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April in Olympia Fields?
When are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Olympia Fields, IL
- Average high temperature in April: 56.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in April
Olympia Fields, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Olympia Fields, IL
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Olympia Fields, IL
- Average humidity in April: 75%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Olympia Fields, IL
- Average rainfall in April: 3.43"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in April
Olympia Fields, IL
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in April
Olympia Fields, IL
- Average snowfall in April: 1.97"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Olympia Fields, IL
- Average snowfall days in April: 1.9 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Olympia Fields, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Olympia Fields, IL
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in April
Olympia Fields, 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
Olympia Fields, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Olympia Fields, IL
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Olympia Fields, Illinois, USA
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