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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Vienna, Illinois, is another cold winter month, with an average temperature fluctuating between 40.1°F (4.5°C) and 27°F (-2.8°C). January proves to be the coldest month, recording an average maximum temperature of 40.1°F (4.5°C) and a minimum temperature of 27°F (-2.8°C). Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in Vienna, Illinois, with an average temperature ranging between min 30.7°F (-0.7°C) and max 45.1°F (7.3°C). As Vienna transitions from January to February, the average high-temperatures adjust to a frosty 45.1°F (7.3°C), nearly the same as the previous 40.1°F (4.5°C). Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Vienna, Illinois, with an average temperature ranging between min 39.7°F (4.3°C) and max 55.8°F (13.2°C). The shift into March is marked by a rise in the average high-temperature, moving from February's chilly 45.1°F (7.3°C) to a mild 55.8°F (13.2°C). Weather in March »
Weather in April
April in Vienna, Illinois, is a comfortable spring month, with an average temperature fluctuating between 66.6°F (19.2°C) and 48.9°F (9.4°C). The beginning of April signals a rise in the average high-temperature, moving from a refreshing 55.8°F (13.2°C) in March to a comfortable 66.6°F (19.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Vienna, Illinois, with temperature in the range of an average low of 57.9°F (14.4°C) and an average high of 75.7°F (24.3°C). May's arrival signals an increase in average high-temperatures, moving from April's refreshing 66.6°F (19.2°C) to a warm 75.7°F (24.3°C). Weather in May »
Weather in June
June, the first month of the summer in Vienna, is still a warm month, with an average temperature fluctuating between 85.6°F (29.8°C) and 66.2°F (19°C). Vienna's transition into June sees a rise in the average high-temperature, advancing from a moderately hot 75.7°F (24.3°C) in May to a still warm 85.6°F (29.8°C). Weather in June »
Weather in July
July is a tropical summer month in Vienna, Illinois, with an average temperature varying between 88°F (31.1°C) and 68.5°F (20.3°C). July brings the highest temperatures, with an average high of 88°F (31.1°C) and an average low of 68.5°F (20.3°C). During July, the heat index is computed to be an extremely hot 104°F (40°C). Weather in July »
Weather in August
August, the last month of the summer in Vienna, is another hot month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 86.5°F (30.3°C). The transition into August marks the average high-temperature at a still hot 86.5°F (30.3°C), differing minimally from July's 88°F (31.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Vienna, is also a moderately hot month, with an average temperature ranging between max 81.1°F (27.3°C) and min 60.6°F (15.9°C). Vienna experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a tropical 86.5°F (30.3°C) in August to a warm 81.1°F (27.3°C). Weather in September »
Weather in October
October, like September, in Vienna, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 49.6°F (9.8°C) and 67.8°F (19.9°C). The shift to October brings a decrease in the average high-temperature, falling from a moderately hot 81.1°F (27.3°C) in September to a comfortable 67.8°F (19.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Vienna, is another cool month, with an average temperature ranging between min 38.8°F (3.8°C) and max 54.5°F (12.5°C). During the transition into November, Vienna observes a decrease in the average high-temperature, falling from an enjoyable 67.8°F (19.9°C) in October to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
December, the first month of the winter in Vienna, is also a frosty month, with an average temperature varying between 32.7°F (0.4°C) and 44.8°F (7.1°C). Vienna's weather changes with the onset of December, slightly falling from a fresh 54.5°F (12.5°C) in November to a chilly 44.8°F (7.1°C). Weather in December »
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
Vienna witnesses the coldest weather in January, with temperatures averaging a high of 40.1°F (4.5°C) and a low of 27°F (-2.8°C).
How much does it rain?
In Vienna, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.
When does it snow?
January through March, November and December are months with snowfall.
How much does it snow?
Throughout the year, there are 11 snowfall days, and 1.57" (40mm) of snow is accumulated.
What is the month with the least sunshine?
January and February, with an average of 4.6h of sunshine, are months with the least sunshine.
What is the month with the lowest UV index in Vienna?
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 3.2 days and typically aggregates up to 0.67" (17mm) of snow.
What is the most humid month?
March and May, with an average relative humidity of 79%, are most humid months.
When is Daylight Saving Time (DST) in Vienna?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
When it does not snow?
April through October are months without snowfall.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the rainiest month in Vienna?
June is the month with the most rainfall. Rain falls for 12.5 days and accumulates 1.5" (38mm) of precipitation.
When are the longest days?
June has the longest days of the year in Vienna, with an average of 14h and 42min of daylight.
What are the months with the most sunshine?
June and July, with an average of 10.4h of sunshine, are months with the most sunshine.
What month is the hottest?
Vienna's warmest month, July, registers temperatures that range from a high of 88°F (31.1°C) to a low of 68.5°F (20.3°C).
What is the driest month?
September is the month with the least rainfall. Rain falls for 8.3 days and accumulates 0.47" (12mm) of precipitation.
What is the least humid month?
With an average relative humidity of 71%, October is the least humid month.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Vienna, IL
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).
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
Vienna, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"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
Vienna, IL
- Average wind speed in January:
9mph - Average wind speed in February:
9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.2mph - Average wind speed in December:
8.5mph
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
Vienna, IL
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Vienna, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
1.14" - Average rainfall in March:
1.22" - Average rainfall in April:
1.22" - Average rainfall in May:
1.34" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.42" - Average rainfall in August:
1.3" - Average rainfall in September:
0.47" - Average rainfall in October:
0.98" - Average rainfall in November:
0.91" - Average rainfall in December:
0.79"
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
Vienna, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
11.6 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
12.7 days - Average rainfall days in June:
12.5 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
8.3 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
7.3 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
Vienna, IL
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
Vienna, IL
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
1.3 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1 days - Average snowfall days in December:
1.9 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 / Average sunshine
Vienna, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
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 January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
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
Vienna, IL
- Average sunshine days in January:
21.4 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
16.7 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
15.1 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
19.1 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
21.2 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
Vienna, IL
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
Vienna, IL
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
Vienna, IL
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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