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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, is a freezing cold winter month in Zion, Illinois, with an average temperature ranging between min 18.3°F and max 27.9°F. January, with average temperatures reaching a high of 27.9°F and a low of 18.3°F, is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Zion, Illinois, with an average temperature varying between 20.7°F and 30.6°F. With the advent of February, Zion's high-temperatures adjust to a still subzero cold 30.6°F, closely aligning with the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Zion, Illinois, with an average temperature ranging between min 30.6°F and max 41.2°F. March's arrival is marked by an increase in the average high-temperature, moving from a freezing cold 30.6°F in February to an icy 41.2°F. Weather in March »
Weather in April
April in Zion, Illinois, is a fresh spring month, with an average temperature varying between 38.8°F and 50.7°F. April shows a rise in the average high-temperature, moving from March's cold 41.2°F to a fresh 50.7°F. Weather in April »
Weather in May
May, the last month of the spring in Zion, is a comfortable month, with temperature in the range of an average high of 61.3°F and an average low of 48.6°F. May's arrival is marked by an increase in the average high-temperature, moving from a cool 50.7°F in April to a refreshing 61.3°F. Weather in May »
Weather in June
June, the first month of the summer in Zion, is a pleasant month, with an average temperature varying between 58.6°F and 70.5°F. In Zion, the average high-temperature in June increases from a comfortable 61.3°F in May to an agreeable 70.5°F. Weather in June »
Weather in July
July in Zion, Illinois, is a moderately hot summer month, with temperature in the range of an average low of 65.3°F and an average high of 77.5°F. Zion reaches its highest average temperatures in July, measuring 77.5°F at the peak and 65.3°F at the lowest. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Zion, Illinois, with an average temperature varying between 77°F and 64.8°F. August is marked by an average high-temperature of a still warm 77°F, almost identical to the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Zion, is still a pleasant month, with an average temperature varying between 70.9°F and 58.5°F. The beginning of September brings a minor change in the average high-temperature, shifting from a warm 77°F in August to an agreeable 70.9°F. Weather in September »
Weather in October
October, like September, is another mild autumn month in Zion, Illinois, with an average temperature ranging between max 58.3°F and min 46.9°F. October implies a gentle temperature shift, with average high-temperatures reducing from September's agreeable 70.9°F to a mild 58.3°F. Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Zion, Illinois, with an average temperature ranging between min 34.7°F and max 45.1°F. In Zion, the average high-temperature in November decreases from a mild 58.3°F in October to a frosty 45.1°F. Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Zion, Illinois, with an average temperature ranging between max 34°F and min 25.3°F. During Zion's transition into December, the average high-temperature lessens, moving from a chilly 45.1°F in November to a wintry 34°F. Weather in December »
[Resources]FAQ
What month is the coldest in Zion?
Zion's January weather, with an average high temperature of 27.9°F and an average low temperature of 18.3°F, tends to be the coldest of the year.
What is the most humid month in Zion?
With an average relative humidity of 83%, January is the most humid month.
How much does it rain in Zion?
In Zion, Illinois, during the entire year, the rain falls for 142.5 days and collects up to 21.5" of precipitation.
When does it snow in Zion?
Months with snowfall in Zion are January through April, October through December.
How much does it snow in Zion?
In Zion, during the entire year, snow falls for 45.5 days and aggregates up to 9.37" of snow.
What is the month with the least sunshine in Zion?
January has the least sunshine of the year in Zion, Illinois, with an average of 3.7h of sunshine.
What are the months with the lowest UV index in Zion?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
When does it snow the most in Zion?
The month with the most snowfall in Zion, Illinois, is February, when snow falls for 9.8 days and typically aggregates up to 2.6" of snow.
When is Daylight Saving Time (DST) in Zion?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.
When it does not snow in Zion?
In Zion, snow does not fall in May through September.
What is the wettest month in Zion?
The wettest months are June and August, with an average 2.68" of rainfall.
When are the longest days in Zion?
The month with the longest days is June, with an average of 15h and 12min of daylight.
What month is the hottest in Zion?
With average temperatures fluctuating between a high of 77.5°F and a low of 65.3°F, July stands out as the warmest month.
What is the month with the most sunshine in Zion?
The months with the most sunshine in Zion, Illinois, are July and August, with an average of 10.5h of sunshine.
What is the month with the highest UV index in Zion?
The months with the highest UV index are July and August, with an average maximum UV index of 6.
What are the least humid months in Zion?
The months with the lowest humidity are October and November, with an average relative humidity of 75%.
What is the driest month in Zion?
The month with the least rainfall in Zion is December, when the rain falls for 8.1 days and typically collects 0.91" of precipitation.
What is the month with the shortest days in Zion?
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Zion, IL
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Zion, IL
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Zion, IL
- Average wind speed in January:
11.9mph - Average wind speed in February:
11.6mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.4mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.5mph - Average wind speed in November:
11.3mph - Average wind speed in December:
11.1mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity
Zion, IL
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall
Zion, IL
- Average rainfall in January:
1.06" - Average rainfall in February:
1.06" - Average rainfall in March:
1.1" - Average rainfall in April:
2.44" - Average rainfall in May:
2.48" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.68" - Average rainfall in September:
1.73" - Average rainfall in October:
1.89" - Average rainfall in November:
1.02" - Average rainfall in December:
0.91"
The wettest months (with the highest rainfall) are June and August (2.68").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days
Zion, IL
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is February (5.2 days).
Average snowfall
Zion, IL
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Zion, IL
- Average snowfall days in January:
12.4 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.1 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:
0.7 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
9.7 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Zion, IL
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Zion, IL
- Average sunshine days in January:
12.4 days - Average sunshine days in February:
12.4 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index
Zion, IL
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Zion, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Zion, 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).
Zion, Illinois, USA
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