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
Entering April, Royalton sees a temperature rise, with the average high-temperature advancing from March's cool 55.2°F (12.9°C) to a refreshing 66.2°F (19°C). Royalton experiences a nighttime temperature average of 48.6°F (9.2°C) during April.Humidity
In Royalton, the average relative humidity in April is 77%.Rainfall
The month with the most rainfall is April, when the rain falls for 15.5 days and typically aggregates up to 4.49" (114mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Royalton. During 0.4 snowfall days, in April, Royalton aggregates 0.08" (2mm) of snow. Throughout the year, in Royalton, there are 15.9 snowfall days, and 5.71" (145mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 13min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:19 pm. On the last day of April, in Royalton, Illinois, sunrise is at 6:00 am and sunset at 7:46 pm CDT.
Sunshine
The average sunshine in April in Royalton is 8.7h.UV index
In Royalton, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 5 during April translates into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Royalton?
What is the average humidity in April in Royalton?
What is the rainiest month in Royalton?
How many days does it rain in April in Royalton?
What is the last month it snows in Royalton?
How many hours of daylight does Royalton have in April?
What time are sunrise and sunset in April in Royalton?
How many hours of sunshine does Royalton have in April?
What is the UV index intensity in April in Royalton?
Average temperature in April
Royalton, IL
- Average high temperature in April: 66.2°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in April: 48.6°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in April
Royalton, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Royalton, IL
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in April
Royalton, IL
- Average humidity in April: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Royalton, IL
- Average rainfall in April: 4.49"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in April
Royalton, IL
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in April
Royalton, IL
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Royalton, IL
- Average snowfall days in April: 0.4 days
The months with the highest number of snowfall days are January and February (4.8 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
Royalton, IL
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in April
Royalton, IL
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in April
Royalton, IL
- Average UV index in April: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Royalton, IL
- Average cloud cover in April: 41
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in April
Royalton, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Royalton, Illinois, USA
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