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 arrival of April brings an increase in high-temperatures, moving from a cold 38.8°F (3.8°C) in March to a cool 51.8°F (11°C). Throughout April, the average low-temperature records at a wintry 35.2°F (1.8°C).Humidity
April and October, with an average relative humidity of 77%, are the least humid months in Rock Falls.Rainfall
In Rock Falls, in April, during 15.2 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Rock Falls, during the entire year, the rain falls for 135.6 days and collects up to 26.57" (675mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Rock Falls, Wisconsin, in April, snow falls for 4.9 days, with typically accumulated 2.87" (73mm) of snow. In Rock Falls, during the entire year, snow falls for 69.2 days and aggregates up to 26.02" (661mm) of snow.Daylight
The average length of the day in April is 13h and 31min.On the first day of April in Rock Falls, sunrise is at 6:45 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:10 pm CDT.
Sunshine
In April, the average sunshine is 7h.UV index
In Rock Falls, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 3 in April interprets into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Around midday, solar radiation is most harmful; hence, exposure should be limited. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the temperature in April in Rock Falls?
What is the least humid month in Rock Falls?
What is the average humidity in April in Rock Falls?
How many days does it rain in April in Rock Falls?
How much does it snow in Rock Falls in April?
How many hours of daylight does Rock Falls have in April?
When are sunrise and sunset in April in Rock Falls?
How long on average sun shines in April in Rock Falls?
How high is the UV index in April in Rock Falls?
Average temperature in April
Rock Falls, WI
- Average high temperature in April: 51.8°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (19.9°F).
- Average low temperature in April: 35.2°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in April
Rock Falls, WI
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Rock Falls, WI
- Average wind speed in April: 9.3mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in April
Rock Falls, WI
- Average humidity in April: 77%
The months with the highest relative humidity are January and February (91%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in April
Rock Falls, WI
- Average rainfall in April: 2.68"
The wettest month (with the highest rainfall) is June (4.57").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in April
Rock Falls, WI
- Average rainfall days in April: 15.2 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in April
Rock Falls, WI
- Average snowfall in April: 2.87"
The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Rock Falls, WI
- Average snowfall days in April: 4.9 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Rock Falls, WI
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in April
Rock Falls, WI
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in April
Rock Falls, WI
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Rock Falls, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Rock Falls, WI
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, August, October and November (6mi).
The month with the lowest visibility is January (4mi).
Rock Falls, Wisconsin, USA
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