July weather forecast
Vermilion, IL

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Weather in July

July, the same as June, is another warm summer month in Vermilion, Illinois, with an average temperature fluctuating between 82.4°F (28°C) and 65.8°F (18.8°C).

Temperature

July is the month that records the highest temperatures, with averages ranging from a high of 82.4°F (28°C) to a low of 65.8°F (18.8°C).

Heat index

The heat index for July is computed to be a tropical 91.4°F (33°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

With an average relative humidity of 83%, July is the most humid month.

Rainfall

In Vermilion, in July, during 15.6 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Vermilion, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Vermilion, the average length of the day in July is 14h and 38min.
On the first day of the month, sunrise is at 5:26 am and sunset at 8:21 pm. On the last day of July, in Vermilion, sunrise is at 5:49 am and sunset at 8:03 pm CDT.

Sunshine

In July, the average sunshine in Vermilion is 10h.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 6 during July morphs into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are the warmest months in Vermilion?

With an average high-temperature of 82.4°F (28°C) and an average low-temperature of 65.8°F (18.8°C), July is the warmest month.

How hot is it in Vermilion in July?

July temperatures in Vermilion, Illinois, vary between a high-temperature of 82.4°F (28°C) and a low-temperature of 65.8°F (18.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 91.4°F (33°C).

What is the most humid month in Vermilion?

With an average relative humidity of 83%, July is the most humid month in Vermilion, Illinois.

What is the average humidity in July in Vermilion?

In Vermilion, Illinois, the average relative humidity in July is 83%.

How many days does it rain in July in Vermilion?

In Vermilion, Illinois, during July, the rain falls for 15.6 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow in Vermilion?

In Vermilion, snow does not fall in May through October.

How many hours of daylight does Vermilion have in July?

In July, the average day length in Vermilion, Illinois, is 14h and 38min.

When are sunrise and sunset in July in Vermilion?

On the first day of July in Vermilion, Illinois, sunrise is at 5:26 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:03 pm CDT.

How long on average sun shines in July in Vermilion?

In Vermilion, the average sunshine duration in July is 10h.

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

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in July in Vermilion?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Vermilion, IL

Average temperature in July - Vermilion, IL
  • Average high temperature in July: 82.4°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in July: 65.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in July
Vermilion, IL

Average pressure in July - Vermilion, IL
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Vermilion, IL

Average wind speed in July - Vermilion, IL
  • Average wind speed in July: 6.1mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

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Average humidity in July
Vermilion, IL

Average humidity in July - Vermilion, IL
  • Average humidity in July: 83%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Vermilion, IL

Average rainfall in July - Vermilion, IL
  • Average rainfall in July: 1.89"

The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").

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Average rainfall days in July
Vermilion, IL

Average rainfall days in July - Vermilion, IL
  • Average rainfall days in July: 15.6 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).

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Average snowfall in July
Vermilion, IL

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

The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Vermilion, IL

Average snowfall days in July - Vermilion, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Vermilion, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in July
Vermilion, IL

Average sunshine days in July - Vermilion, IL
  • Average sunshine days in July: 11.8 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in July
Vermilion, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Vermilion, IL

Average cloud cover in July - Vermilion, IL
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).

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Average visibility in July
Vermilion, IL

Average visibility in July - Vermilion, IL
  • Average visibility in July: 5mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

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Vermilion, Illinois, USA

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