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
April's onset witnesses a shift in the average high-temperature, moving from a refreshing 55.6°F (13.1°C) in March to an enjoyable 66.6°F (19.2°C). The average nighttime temperature in Alto Pass lowers to a frosty 48.9°F (9.4°C) throughout April.Humidity
In April, the average relative humidity in Alto Pass is 78%.Rainfall
April is the month with the most rainfall. Rain falls for 13.4 days and accumulates 3.31" (84mm) of precipitation.Snowfall
Months with snowfall in Alto Pass are January through April, October through December. April is the last month it regularly snows. During 0.4 snowfall days, in April, Alto Pass aggregates 0.08" (2mm) of snow. Throughout the year, there are 14.9 snowfall days, and 6.06" (154mm) of snow is accumulated.Daylight
In Alto Pass, the average length of the day in April is 13h and 11min.On the first day of April, sunrise is at 6:41 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:46 pm CDT.
Sunshine
The average sunshine in April in Alto Pass is 8.5h.UV index
The average daily maximum UV index in April in Alto Pass is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the average April temperature in Alto Pass?
What is the average humidity in April in Alto Pass?
What is the rainiest month in Alto Pass?
How many days does it rain in April in Alto Pass?
What is the last month it snows in Alto Pass?
How many hours of daylight does Alto Pass have in April?
When are sunrise and sunset in April in Alto Pass?
How long on average sun shines in April in Alto Pass?
How high is the UV index in April in Alto Pass?
Average temperature in April
Alto Pass, IL
- Average high temperature in April: 66.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in April: 48.9°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in April
Alto Pass, IL
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Alto Pass, IL
- Average wind speed in April: 8.8mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in April
Alto Pass, IL
- Average humidity in April: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Alto Pass, IL
- Average rainfall in April: 3.31"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in April
Alto Pass, IL
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in April
Alto Pass, IL
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Alto Pass, IL
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is January (4.6 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
Alto Pass, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in April
Alto Pass, IL
- Average sunshine days in April: 14.5 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in April
Alto Pass, 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
Alto Pass, IL
- Average cloud cover in April: 42
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in April
Alto Pass, 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).
Alto Pass, Illinois, USA
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