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
April comes with an increase, with the average high-temperature moving from a chilly 44.2°F (6.8°C) in March to a mild 56.5°F (13.6°C). The average nighttime temperature in Forreston lowers to an icy 39.7°F (4.3°C) throughout April.Humidity
The months with the lowest humidity are April and October, with an average relative humidity of 75%.Rainfall
In Forreston, in April, it is raining for 15.3 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, in Forreston, there are 145.6 rainfall days, and 23.43" (595mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Forreston. April is the last month it regularly snows. During 2 snowfall days, in April, Forreston aggregates 0.71" (18mm) of snow. In Forreston, during the entire year, snow falls for 45.5 days and aggregates up to 13.15" (334mm) of snow.Daylight
In April, the average length of the day is 13h and 23min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:24 pm. On the last day of April, sunrise is at 5:54 am and sunset at 7:56 pm CDT.
Sunshine
In April, the average sunshine in Forreston is 7.5h.UV index
In Forreston, Illinois, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 3 in April transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Forreston in April?
What are the least humid months in Forreston?
What is the average humidity in April in Forreston?
How much does it rain in Forreston in April?
What is the last month it snows in Forreston?
How many hours of daylight does Forreston have in April?
What time are sunrise and sunset in April in Forreston?
How long on average sun shines in April in Forreston?
What is the UV index reading in April in Forreston?
Average temperature in April
Forreston, IL
- Average high temperature in April: 56.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in April
Forreston, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Forreston, IL
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Forreston, IL
- Average humidity in April: 75%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in April
Forreston, IL
- Average rainfall in April: 2.48"
The wettest month (with the highest rainfall) is June (3.39").
The driest months (with the least rainfall) are February and December (1.06").
Average rainfall days in April
Forreston, IL
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5 days).
Average snowfall in April
Forreston, IL
- Average snowfall in April: 0.71"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Forreston, IL
- Average snowfall days in April: 2 days
The month with the highest number of snowfall days is January (12.4 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
Forreston, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Forreston, IL
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in April
Forreston, IL
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Forreston, IL
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in April
Forreston, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Forreston, Illinois, USA
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