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
Harvard's transition into April sees a rise in the average high-temperature, advancing from a chilly 43.3°F (6.3°C) in March to a fresh 54.9°F (12.7°C). Throughout the month of April, Harvard witnesses an average low-temperature of 38.1°F (3.4°C).Humidity
April and October, with an average relative humidity of 77%, are the least humid months.Rainfall
In Harvard, in April, during 15.7 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 152.8 rainfall days, and 26.46" (672mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Harvard, during April, snow falls for 3.3 days and regularly aggregates up to 1.77" (45mm) of snow. Throughout the year, there are 54.4 snowfall days, and 16.93" (430mm) 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 6:35 am and sunset at 7:20 pm. On the last day of April, sunrise is at 5:49 am and sunset at 7:53 pm CDT.
Sunshine
In Harvard, the average sunshine in April is 7.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Harvard?
What is the least humid month?
What is the average humidity in April?
How much does it rain in April?
How much does it snow in April?
How many hours of daylight does Harvard have in April?
What time are sunrise and sunset in April in Harvard?
How many hours of sunshine does Harvard have in April?
What is the UV index intensity in April?
Average temperature in April
Harvard, IL
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in April: 38.1°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in April
Harvard, 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
Harvard, IL
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in April
Harvard, IL
- Average humidity in April: 77%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in April
Harvard, IL
- Average rainfall in April: 3.07"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in April
Harvard, IL
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in April
Harvard, IL
- Average snowfall in April: 1.77"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Harvard, IL
- Average snowfall days in April: 3.3 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Harvard, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Harvard, IL
- Average sunshine days in April: 10.8 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in April
Harvard, 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
Harvard, IL
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in April
Harvard, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Harvard, Illinois, USA
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