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
Noticing a change, the average high-temperature during April moves from March's chilly 45.5°F (7.5°C) to a refreshing 56.7°F (13.7°C). An average low-temperature of 41.7°F (5.4°C) is noted during the nights in April in Harvey.Humidity
In Harvey, the average relative humidity in April is 75%.Rainfall
In Harvey, in April, during 16.8 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. In Harvey, during the entire year, the rain falls for 155.6 days and collects up to 31.3" (795mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Harvey. April is the last month it regularly snows. During 1.9 snowfall days, in April, Harvey aggregates 1.97" (50mm) of snow. In Harvey, during the entire year, snow falls for 44.6 days and aggregates up to 16.46" (418mm) of snow.Daylight
In April, the average length of the day is 13h and 22min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:16 pm. On the last day of April, in Harvey, sunrise is at 5:47 am and sunset at 7:47 pm CDT.
Sunshine
The average sunshine in April in Harvey, Illinois, 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 moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, the maximum UV index of 3 transforms into these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Harvey in April?
What is the average humidity in April in Harvey?
How many days does it rain in April in Harvey?
What is the last month it snows in Harvey?
How many hours of daylight does Harvey have in April?
When is the sunrise / sunset in April in Harvey?
How many hours of sunshine does Harvey have in April?
How high is the UV index in April in Harvey?
Average temperature in April
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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
Harvey, 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).
Harvey, Illinois, USA
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