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 beginning of April marks a shift in the average high-temperature, moving from March's chilly 47.1°F (8.4°C) to a moderate 59°F (15°C). During the nights in April, an average low-temperature of 42.4°F (5.8°C) is observed in Granville.Humidity
The average relative humidity in April is 74%.Rainfall
In Granville, in April, during 17.1 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. Throughout the year, there are 152.7 rainfall days, and 30.79" (782mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Granville. During 1.4 snowfall days, in April, Granville aggregates 1.22" (31mm) of snow. Throughout the year, there are 39.5 snowfall days, and 15.31" (389mm) of snow is accumulated.Daylight
The average length of the day in April in Granville, Illinois, is 13h and 21min.On the first day of April in Granville, sunrise is at 6:38 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 7:53 pm CDT.
Sunshine
In April, the average sunshine is 7.9h.UV index
In Granville, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 3 suggests this advice:
Undertake precautions - Guarding against sun damage is counselled. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What is the usual temperature for Granville in April?
What is the average humidity in April in Granville?
How many days does it rain in April in Granville?
What is the last month it snows in Granville?
How many hours of daylight does Granville have in April?
When are sunrise and sunset in April in Granville?
How many hours of sunshine does Granville have in April?
What is the UV index reading in April in Granville?
Average temperature in April
Granville, IL
- Average high temperature in April: 59°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in April
Granville, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Granville, IL
- Average wind speed in April: 10.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Granville, 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 (72%).
Average rainfall in April
Granville, IL
- Average rainfall in April: 3.82"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").
Average rainfall days in April
Granville, IL
- Average rainfall days in April: 17.1 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in April
Granville, IL
- Average snowfall in April: 1.22"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Granville, IL
- Average snowfall days in April: 1.4 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Granville, 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 18min).
- Average sunshine in April: 7h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Granville, IL
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in April
Granville, IL
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Granville, 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 32).
Average visibility in April
Granville, IL
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Granville, Illinois, USA
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