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 Saint Augustine transitions into April, the average high-temperature shows a change, moving from a chilly 48.2°F (9°C) in March to a mild 60.4°F (15.8°C). Throughout April, the temperature falls to an average low of 43.7°F (6.5°C).Humidity
The average relative humidity in April is 75%.Rainfall
In Saint Augustine, in April, it is raining for 13.8 days, with typically 1.61" (41mm) of accumulated precipitation. In Saint Augustine, during the entire year, the rain falls for 126 days and collects up to 14.45" (367mm) of precipitation.Snowfall
Months with snowfall in Saint Augustine, Illinois, are January through April, October through December. April is the last month it regularly snows in Saint Augustine. During 1.1 snowfall days, in April, Saint Augustine aggregates 0.43" (11mm) of snow. In Saint Augustine, during the entire year, snow falls for 32.2 days and aggregates up to 4.8" (122mm) of snow.Daylight
The average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:43 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:57 pm CDT.
Sunshine
In Saint Augustine, Illinois, the average sunshine in April is 8h.UV index
In April, the average daily maximum UV index in Saint Augustine, Illinois, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In April, a regular UV index of 4 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the average April temperature in Saint Augustine?
What is the average humidity in April in Saint Augustine?
How many days does it rain in April in Saint Augustine?
What is the last month it snows in Saint Augustine?
What is the average length of the day in April in Saint Augustine?
When are sunrise and sunset in April in Saint Augustine?
How long on average sun shines in April in Saint Augustine?
What is the UV index intensity in April in Saint Augustine?
Average temperature in April
Saint Augustine, IL
- Average high temperature in April: 60.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in April: 43.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in April
Saint Augustine, IL
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Saint Augustine, IL
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in April
Saint Augustine, IL
- Average humidity in April: 75%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Saint Augustine, IL
- Average rainfall in April: 1.61"
The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.59").
Average rainfall days in April
Saint Augustine, IL
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in April
Saint Augustine, IL
- Average snowfall in April: 0.43"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Saint Augustine, IL
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is January (10.3 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
Saint Augustine, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in April
Saint Augustine, IL
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in April
Saint Augustine, IL
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Saint Augustine, IL
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in April
Saint Augustine, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Saint Augustine, Illinois, USA
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