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 brings a rise in Alto Pass's average high-temperature, moving from a moderate 55.6°F (13.1°C) in March to a comfortable 66.6°F (19.2°C). An average low-temperature of 48.9°F (9.4°C) is noted during the month of April.Humidity
In Alto Pass, Illinois, the average relative humidity in April is 78%.Rainfall
The month with the most rainfall is April, when the rain falls for 13.4 days and typically aggregates up to 3.31" (84mm) of precipitation.Snowfall
Months with snowfall 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
The average length of the day in April is 13h and 11min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:20 pm. On the last day of April, sunrise is at 6:01 am and sunset at 7:46 pm CDT.
Sunshine
In Alto Pass, the average sunshine in April is 8.5h.UV index
In Alto Pass, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 5 in April translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
What is the wettest month?
How many days does it rain in April?
What is the last month it snows?
How many hours of daylight does Alto Pass have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
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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