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 is marked by a temperature increase, moving from 55.8°F (13.2°C) in March to a still refreshing 66.6°F (19.2°C). In April, Vienna's temperature tends to fall to an average low of 48.9°F (9.4°C) during the night.Humidity
The average relative humidity in April in Vienna is 77%.Rainfall
In April, in Vienna, the rain falls for 11.3 days. Throughout April, 1.22" (31mm) of precipitation is accumulated. Throughout the year, in Vienna, Illinois, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Vienna.Daylight
In April, the average length of the day is 13h and 11min.On the first day of April in Vienna, Illinois, sunrise is at 6:39 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:44 pm CDT.
Sunshine
The average sunshine in April is 8.5h.UV index
In Vienna, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during April translates into the following guidance:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What is the usual temperature for Vienna in April?
What is the average humidity in April in Vienna?
How much does it rain in Vienna in April?
When it does not snow in Vienna?
Does it snow in Vienna in April?
What is the average length of the day in April in Vienna?
What time are sunrise and sunset in April in Vienna?
How long on average sun shines in April in Vienna?
What is the UV index intensity in April in Vienna?
Average temperature in April
Vienna, IL
- Average high temperature in April: 66.6°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in April: 48.9°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 (27°F).
Average pressure in April
Vienna, 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
Vienna, IL
- Average wind speed in April: 8.9mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in April
Vienna, IL
- Average humidity in April: 77%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Vienna, IL
- Average rainfall in April: 1.22"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in April
Vienna, IL
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in April
Vienna, IL
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Vienna, IL
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (3.3 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
Vienna, 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 months with the most sunshine are June and 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
Vienna, IL
- Average sunshine days in April: 16.7 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in April
Vienna, IL
- Average UV index in April: 4
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
Vienna, IL
- Average cloud cover in April: 41
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in April
Vienna, 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).
Vienna, Illinois, USA
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