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 start of April brings a shift in the average high-temperature, increasing from March's frosty 42.8°F (6°C) to a fresh 54.3°F (12.4°C). McHenry reports an average nighttime low-temperature of 38.3°F (3.5°C) in April.Humidity
In McHenry, the average relative humidity in April is 77%.Rainfall
In McHenry, in April, it is raining for 16.8 days, with typically 3.46" (88mm) of accumulated precipitation. In McHenry, during the entire year, the rain falls for 152.4 days and collects up to 28.07" (713mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In McHenry, during April, snow falls for 2.2 days and regularly aggregates up to 1.54" (39mm) of snow. Throughout the year, there are 49 snowfall days, and 16.5" (419mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 24min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:19 pm. On the last day of April, sunrise is at 5:48 am and sunset at 7:51 pm CDT.
Sunshine
The average sunshine in April in McHenry is 7.5h.UV index
In McHenry, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for McHenry in April?
What is the average humidity in April in McHenry?
How much does it rain in McHenry in April?
How many days does it snow in April in McHenry?
How many hours of daylight does McHenry have in April?
What time are sunrise and sunset in April in McHenry?
How long on average sun shines in April in McHenry?
How high is the UV index in April in McHenry?
Average temperature in April
McHenry, IL
- Average high temperature in April: 54.3°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 (26.6°F).
- Average low temperature in April: 38.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in April
McHenry, 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
McHenry, IL
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in April
McHenry, IL
- Average humidity in April: 77%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in April
McHenry, IL
- Average rainfall in April: 3.46"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days in April
McHenry, IL
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in April
McHenry, IL
- Average snowfall in April: 1.54"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
McHenry, IL
- Average snowfall days in April: 2.2 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
McHenry, 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 6min).
- Average sunshine in April: 7h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
McHenry, IL
- Average sunshine days in April: 10.5 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in April
McHenry, IL
- Average UV index in April: 3
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
McHenry, IL
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in April
McHenry, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
McHenry, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location