July weather forecast
Zion, IL

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Weather in July

July is a moderately hot summer month in Zion, Illinois, with an average temperature fluctuating between 77.5°F (25.3°C) and 65.3°F (18.5°C).

Temperature

July registers as the month with the highest average temperatures, reaching 77.5°F (25.3°C) at its peak and 65.3°F (18.5°C) at the lowest.

Humidity

The average relative humidity in July in Zion is 80%.

Rainfall

In Zion, during July, the rain falls for 17 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Zion, during the entire year, the rain falls for 142.5 days and collects up to 21.5" (546mm) of precipitation.

Snowfall

May through September are months without snowfall in Zion.

Daylight

In July, the average length of the day is 14h and 55min.
On the first day of the month, sunrise is at 5:18 am and sunset at 8:32 pm. On the last day of July, sunrise is at 5:43 am and sunset at 8:11 pm CDT.

Sunshine

July and August, with an average of 10.5h of sunshine, are months with the most sunshine.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What time of the year is the hottest in Zion?

July, with its average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 65.3°F (18.5°C), holds the record as the warmest month in Zion, Illinois.

What are July temperatures in Zion?

The average high-temperature, in July, in Zion, is 77.5°F (25.3°C), while the average low-temperature is 65.3°F (18.5°C).

What is the average humidity in July in Zion?

In July, the average relative humidity in Zion is 80%.

How many days does it rain in July in Zion?

In Zion, Illinois, during July, the rain falls for 17 days and regularly aggregates up to 2.44" (62mm) of precipitation.

When it does not snow in Zion?

May through September are months without snowfall in Zion.

How many hours of daylight does Zion have in July?

The average day length in July in Zion, Illinois, is 14h and 55min.

When are sunrise and sunset in July in Zion?

On the first day of July, sunrise is at 5:18 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:11 pm CDT.

What is the month with the most sunshine in Zion?

The months with the most sunshine in Zion are July and August, with an average of 10.5h of sunshine.

How long on average sun shines in July in Zion?

In Zion, the average sunshine duration in July is 10.5h.

What is the month with the highest UV index in Zion?

The months with the highest UV index in Zion, Illinois, are July and August, with an average maximum UV index of 6.

What is the UV index reading in July in Zion?

In Zion, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Zion, IL

Average temperature in July - Zion, IL
  • Average high temperature in July: 77.5°F

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).

  • Average low temperature in July: 65.3°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).

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Average pressure in July
Zion, IL

Average pressure in July - Zion, IL
  • Average pressure in July: 29.96"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).

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Average wind speed in July
Zion, IL

Average wind speed in July - Zion, IL
  • Average wind speed in July: 7.4mph

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).

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Average humidity in July
Zion, IL

Average humidity in July - Zion, IL
  • Average humidity in July: 80%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in July
Zion, IL

Average rainfall in July - Zion, IL
  • Average rainfall in July: 2.44"

The wettest months (with the highest rainfall) are June and August (2.68").
The driest month (with the least rainfall) is December (0.91").

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Average rainfall days in July
Zion, IL

Average rainfall days in July - Zion, IL
  • Average rainfall days in July: 17 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).

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Average snowfall in July
Zion, IL

Average snowfall in July - Zion, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Zion, IL

Average snowfall days in July - Zion, IL
  • Average snowfall days in July: 0 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).

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Average daylight in July /
Average sunshine in July
Zion, IL

Average daylight in July / Average sunshine in July - Zion, IL
  • Average daylight in July: 14h and 5min

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 July: 10h and 3min

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).

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Average sunshine days in July
Zion, IL

Average sunshine days in July - Zion, IL
  • Average sunshine days in July: 10.8 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).

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Average UV index in July
Zion, IL

Average UV index in July - Zion, IL
  • Average UV index in July: 6

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).

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Average cloud cover in July
Zion, IL

Average cloud cover in July - Zion, IL
  • Average cloud cover in July: 28

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in July
Zion, IL

Average visibility in July - Zion, IL
  • Average visibility in July: 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).

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Zion, Illinois, USA

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