April weather forecastGrape Creek, IL
April
Weather in April
April is a refreshing spring month in Grape Creek, Illinois, with an average temperature fluctuating between 45°F (7.2°C) and 61.2°F (16.2°C).Temperature
Grape Creek sees an increase in average high-temperatures during April, moving from a frosty 49.1°F (9.5°C) in March to a comfortable 61.2°F (16.2°C). In April, Grape Creek experiences a temperature dip to an average of 45°F (7.2°C) at night.Humidity
The average relative humidity in April is 76%.Rainfall
April is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.23" (82mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.9 snowfall days, in April, Grape Creek aggregates 0.28" (7mm) of snow. In Grape Creek, during the entire year, snow falls for 35.2 days and aggregates up to 8.82" (224mm) of snow.Daylight
In Grape Creek, the average length of the day in April is 13h and 18min.On the first day of April, sunrise is at 6:33 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 7:44 pm CDT.
Sunshine
The average sunshine in April is 8.1h.UV index
In Grape Creek, Illinois, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In April, a regular UV index of 4 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Grape Creek, IL
- Average high temperature in April: 61.2°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 (31.6°F).
- Average low temperature in April: 45°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Grape Creek, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Grape Creek, IL
- Average wind speed in April: 10.2mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in April
Grape Creek, IL
- Average humidity in April: 76%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Grape Creek, IL
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").
Average rainfall days in April
Grape Creek, IL
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in April
Grape Creek, IL
- Average snowfall in April: 0.28"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Grape Creek, IL
- Average snowfall days in April: 0.9 days
The month with the highest number of snowfall days is January (10.6 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
Grape Creek, 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 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
Grape Creek, IL
- Average sunshine days in April: 11.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in April
Grape Creek, 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
Grape Creek, IL
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in April
Grape Creek, 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).
