July weather forecast
Vernon, IL

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Weather in July

July, like June, in Vernon, Illinois, is a moderately hot summer month, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 67.5°F (19.7°C).

Temperature

The warmest period tends to be July, when average temperatures fluctuate between a high of 84.7°F (29.3°C) and a low of 67.5°F (19.7°C).

Heat index

For most parts of July, the heat index is appraised at a fiery hot 96.8°F (36°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The months with the highest humidity in Vernon are May, July and August, with an average relative humidity of 80%.

Rainfall

In Vernon, in July, during 16.5 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, in Vernon, there are 145.5 rainfall days, and 28.39" (721mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Vernon, the average length of the day in July is 14h and 34min.
On the first day of July, sunrise is at 5:35 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:08 pm CDT.

Sunshine

In July, the average sunshine in Vernon is 10.4h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 during July translates into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What month is the hottest in Vernon?

July, with its high-temperature average of 84.7°F (29.3°C) and a low-temperature average of 67.5°F (19.7°C), is the warmest month in Vernon.

How hot does it get in Vernon in July?

July temperatures in Vernon, Illinois, vary between a high-temperature of 84.7°F (29.3°C) and a low-temperature of 67.5°F (19.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is appraised at 96.8°F (36°C).

What are the most humid months in Vernon?

The months with the highest humidity in Vernon are May, July and August, with an average relative humidity of 80%.

What is the average humidity in July in Vernon?

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

How much does it rain in Vernon in July?

In Vernon, during July, the rain falls for 16.5 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow in Vernon?

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

How many hours of daylight does Vernon have in July?

In July, the average day length in Vernon is 14h and 34min.

What time are sunrise and sunset in July in Vernon?

On the first day of July in Vernon, sunrise is at 5:35 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:08 pm CDT.

How many hours of sunshine does Vernon have in July?

The average sunshine duration in July in Vernon, Illinois, is 10.4h.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index in Vernon.

What is the UV index reading in July in Vernon?

The average daily maximum UV index in July in Vernon is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Vernon, IL

Average temperature in July - Vernon, IL
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in July: 67.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in July
Vernon, IL

Average pressure in July - Vernon, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Vernon, IL

Average wind speed in July - Vernon, IL
  • Average wind speed in July: 5.8mph

The windiest months (with the highest average wind speed) are January and February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in July
Vernon, IL

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

The months with the highest relative humidity are May, July and August (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Vernon, IL

Average rainfall in July - Vernon, IL
  • Average rainfall in July: 2.76"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in July
Vernon, IL

Average rainfall days in July - Vernon, IL
  • Average rainfall days in July: 16.5 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in July
Vernon, IL

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

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Vernon, IL

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

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in July
Vernon, IL

Average sunshine days in July - Vernon, IL
  • Average sunshine days in July: 12.3 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in July
Vernon, IL

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

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

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Average cloud cover in July
Vernon, IL

Average cloud cover in July - Vernon, IL
  • Average cloud cover in July: 29

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in July
Vernon, IL

Average visibility in July - Vernon, 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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Vernon, Illinois, USA

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