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 shift from March to April brings an increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) to a refreshing 55.9°F (13.3°C). An average low-temperature of 39.7°F (4.3°C) is observed during April nights in Rockford.Humidity
April and October, with an average relative humidity of 75%, are the least humid months.Rainfall
In Rockford, during April, the rain falls for 16.4 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, in Rockford, there are 148.1 rainfall days, and 28.39" (721mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rockford are January through April, October through December. April is the last month it regularly snows. During 1.8 snowfall days, in April, Rockford aggregates 0.94" (24mm) of snow. In Rockford, during the entire year, snow falls for 45.9 days and aggregates up to 15.67" (398mm) of snow.Daylight
The average length of the day in April is 13h and 24min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:22 pm. On the last day of April, sunrise is at 5:51 am and sunset at 7:55 pm CDT.
Sunshine
In April, the average sunshine in Rockford is 7.5h.UV index
In Rockford, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 3 in April translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Rockford?
What is the least humid month in Rockford?
What is the average humidity in April in Rockford?
How many days does it rain in April in Rockford?
What is the last month it snows in Rockford?
What is the average length of the day in April in Rockford?
When are sunrise and sunset in April in Rockford?
How long on average sun shines in April in Rockford?
What is the UV index intensity in April in Rockford?
Average temperature in April
Rockford, IL
- Average high temperature in April: 55.9°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in April
Rockford, IL
- Average pressure in April: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Rockford, IL
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Rockford, IL
- Average humidity in April: 75%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in April
Rockford, IL
- Average rainfall in April: 3.31"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in April
Rockford, IL
- Average rainfall days in April: 16.4 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in April
Rockford, IL
- Average snowfall in April: 0.94"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Rockford, IL
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (13 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
Rockford, 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 12min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Rockford, IL
- Average sunshine days in April: 10.6 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in April
Rockford, 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, November and December (UV index 1).
Average cloud cover in April
Rockford, IL
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in April
Rockford, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Rockford, Illinois, USA
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