July weather forecast
Clarke City, IL

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Weather in July

July, like June, in Clarke City, Illinois, is another warm summer month, with an average temperature ranging between max 81.1°F (27.3°C) and min 64.4°F (18°C).

Temperature

In Clarke City, the average temperatures in July are the highest, with a peak at 81.1°F (27.3°C) and a low of 64.4°F (18°C).

Heat index

In July, the heat index is estimated at a tropical 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

With an average relative humidity of 84%, July is the most humid month.

Rainfall

In July, the rain falls for 17.3 days. Throughout July, 2.4" (61mm) of precipitation is accumulated. In Clarke City, during the entire year, the rain falls for 140.4 days and collects up to 21.5" (546mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 47min.
On the first day of July, sunrise is at 5:24 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:10 pm CDT.

Sunshine

In July, the average sunshine is 9.8h.

UV index

The months with the highest UV index in Clarke City are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, the maximum UV index of 6 translates into these guidelines:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest in Clarke City?

July, recording an average high temperature of 81.1°F (27.3°C) and a low temperature of 64.4°F (18°C), is Clarke City's warmest month.

What are the temperatures in July?

In Clarke City, 81.1°F (27.3°C) is the average high-temperature and 64.4°F (18°C) is the average low-temperature during July. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in July is estimated at 87.8°F (31°C).

What is the most humid month?

July is the most humid month, with an average relative humidity of 84%.

What is the average humidity in July?

In Clarke City, Illinois, the average relative humidity in July is 84%.

How many days does it rain in July?

In Clarke City, in July, during 17.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When it does not snow in Clarke City?

May through September are months without snowfall.

What is the average length of the day in July?

In Clarke City, the average day length in July is 14h and 47min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:24 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:10 pm CDT.

How long on average sun shines in July?

In Clarke City, the average sunshine duration in July is 9.8h.

When is the highest UV index?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Clarke City, IL

Average temperature in July - Clarke City, IL
  • Average high temperature in July: 81.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in July: 64.4°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in July
Clarke City, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Clarke City, IL

Average wind speed in July - Clarke City, IL
  • Average wind speed in July: 6.2mph

The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in July
Clarke City, IL

Average humidity in July - Clarke City, IL
  • Average humidity in July: 84%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Clarke City, IL

Average rainfall in July - Clarke City, IL
  • Average rainfall in July: 2.4"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in July
Clarke City, IL

Average rainfall days in July - Clarke City, IL
  • Average rainfall days in July: 17.3 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in July
Clarke City, IL

Average snowfall in July - Clarke City, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Clarke City, IL

Average snowfall days in July - Clarke City, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Clarke City, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 9h and 5min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in July
Clarke City, IL

Average sunshine days in July - Clarke City, IL
  • Average sunshine days in July: 9.5 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in July
Clarke City, IL

Average UV index in July - Clarke City, 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 and December (UV index 1).

Average cloud cover in July
Clarke City, IL

Average cloud cover in July - Clarke City, IL
  • Average cloud cover in July: 34

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in July
Clarke City, IL

Average visibility in July - Clarke City, 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).

Clarke City, Illinois, USA

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