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
As March gives way to April, the average high-temperature displays an increase, moving from a cool 55°F (12.8°C) to an enjoyable 66.4°F (19.1°C). Throughout the nights in April, an average low-temperature of 48.2°F (9°C) is noted.Humidity
In Rockwood, the average relative humidity in April is 77%.Rainfall
The months with the most rainfall are April and May, with an average 1.22" (31mm) of precipitation.Snowfall
April through September are months without snowfall in Rockwood.Daylight
In Rockwood, Illinois, the average length of the day in April is 13h and 12min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:22 pm. On the last day of April, sunrise is at 6:03 am and sunset at 7:48 pm CDT.
Sunshine
The average sunshine in April is 8.7h.UV index
In Rockwood, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What are the temperatures in Rockwood in April?
What is the average humidity in April in Rockwood?
What is the wettest month in Rockwood?
How many days does it rain in April in Rockwood?
When it does not snow in Rockwood?
Does it snow in Rockwood in April?
How many hours of daylight does Rockwood have in April?
What time are sunrise and sunset in April in Rockwood?
How many hours of sunshine does Rockwood have in April?
How high is the UV index in April in Rockwood?
Average temperature in April
Rockwood, IL
- Average high temperature in April: 66.4°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in April: 48.2°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in April
Rockwood, 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
Rockwood, IL
- Average wind speed in April: 8.8mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in April
Rockwood, 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
Rockwood, IL
- Average rainfall in April: 1.22"
The wettest months (with the highest rainfall) are April and May (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in April
Rockwood, IL
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in April
Rockwood, IL
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in April
Rockwood, IL
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (3.7 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
Rockwood, 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 months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in April
Rockwood, IL
- Average sunshine days in April: 15.8 days
The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in April
Rockwood, 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 and December (UV index 2).
Average cloud cover in April
Rockwood, IL
- Average cloud cover in April: 41
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in April
Rockwood, 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).
Rockwood, Illinois, USA
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