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 onset of April brings a temperature shift, with the average high-temperature moving from a chilly 46.2°F (7.9°C) in March to a mild 58.1°F (14.5°C). Joliet, during the month of April, experiences an average low-temperature of 41.7°F (5.4°C).Humidity
The average relative humidity in April is 75%.Rainfall
In Joliet, Illinois, in April, it is raining for 16.3 days, with typically 3.62" (92mm) of accumulated precipitation. Throughout the year, in Joliet, there are 153.6 rainfall days, and 32.72" (831mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Joliet. April is the last month it regularly snows. During 1 snowfall days, in April, Joliet aggregates 1.57" (40mm) of snow. Throughout the year, there are 38.2 snowfall days, and 14.61" (371mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 22min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of April, in Joliet, sunrise is at 5:49 am and sunset at 7:49 pm CDT.
Sunshine
In Joliet, the average sunshine in April is 7.5h.UV index
In Joliet, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the usual temperature for Joliet in April?
What is the average humidity in April in Joliet?
How much does it rain in Joliet in April?
What is the last month it snows in Joliet?
How many hours of daylight does Joliet have in April?
What time are sunrise and sunset in April in Joliet?
How long on average sun shines in April in Joliet?
How high is the UV index in April in Joliet?
Average temperature in April
Joliet, IL
- Average high temperature in April: 58.1°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 (29.3°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in April
Joliet, 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 (29.92"Hg).
Average wind speed in April
Joliet, IL
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in April
Joliet, IL
- Average humidity in April: 75%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Joliet, IL
- Average rainfall in April: 3.62"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in April
Joliet, IL
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in April
Joliet, IL
- Average snowfall in April: 1.57"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Joliet, IL
- Average snowfall days in April: 1 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, August and September (0 days).
Average daylight in April /
Average sunshine in April
Joliet, 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 12min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Joliet, IL
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in April
Joliet, IL
- Average UV index in April: 3
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
Joliet, IL
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in April
Joliet, 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).
Joliet, Illinois, USA
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