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
As April sets, the average high-temperature shows an increase, moving up from a frosty 47.5°F (8.6°C) in March to a moderate 59.4°F (15.2°C). Grand Ridge's nighttime temperature in April drops to an average of 42.8°F (6°C).Humidity
The average relative humidity in April is 74%.Rainfall
In Grand Ridge, in April, during 14.9 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Grand Ridge, Illinois, during the entire year, the rain falls for 145 days and collects up to 25.08" (637mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.6 snowfall days, in April, Grand Ridge aggregates 1.97" (50mm) of snow. Throughout the year, there are 37.9 snowfall days, and 12.91" (328mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 21min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:20 pm. On the last day of April, sunrise is at 5:52 am and sunset at 7:51 pm CDT.
Sunshine
The average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 4 transforms into these recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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 many days does it rain in April?
What is the last month it snows?
How many hours of daylight does Grand Ridge have in April?
When is the sunrise / sunset in April in Grand Ridge?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Grand Ridge, IL
- Average high temperature in April: 59.4°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in April: 42.8°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in April
Grand Ridge, 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 (29.92"Hg).
Average wind speed in April
Grand Ridge, 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 (6.2mph).
Average humidity in April
Grand Ridge, 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
Grand Ridge, IL
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days in April
Grand Ridge, IL
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in April
Grand Ridge, IL
- Average snowfall in April: 1.97"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Grand Ridge, IL
- Average snowfall days in April: 1.6 days
The month with the highest number of snowfall days is January (11.8 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
Grand Ridge, 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 month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Grand Ridge, IL
- Average sunshine days in April: 11.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in April
Grand Ridge, IL
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Grand Ridge, 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
Grand Ridge, 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).
Grand Ridge, Illinois, USA
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