July weather forecast
Countryside, IL

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Weather in July

July, the same as June, is a moderately hot summer month in Countryside, Illinois, with an average temperature varying between 81.9°F (27.7°C) and 66.6°F (19.2°C).

Temperature

Countryside's temperature records reveal July as the warmest month, marked by average highs of 81.9°F (27.7°C) and lows of 66.6°F (19.2°C).

Heat index

In July, the average heat index is computed to be a hot 87.8°F (31°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

The average relative humidity in July is 77%.

Rainfall

In Countryside, in July, it is raining for 18.7 days, with typically 3.86" (98mm) of accumulated precipitation. In Countryside, during the entire year, the rain falls for 166.8 days and collects up to 34.96" (888mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Countryside, the average length of the day in July is 14h and 51min.
On the first day of July, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

Sunshine

In Countryside, the average sunshine in July is 10.1h.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

July is the warmest month, exhibiting average temperatures of 81.9°F (27.7°C) at the peak and 66.6°F (19.2°C) at the base.

What is the average July temperature?

In July, in Countryside, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 66.6°F (19.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 87.8°F (31°C).

What is the average humidity in July?

The average relative humidity in July is 77%.

How many days does it rain in July?

In Countryside, in July, it is raining for 18.7 days, with typically 3.86" (98mm) of accumulated precipitation.

When it does not snow?

In Countryside, snow does not fall in May through September.

What is the average length of the day in July?

In Countryside, the average day length in July is 14h and 51min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

How long on average sun shines in July in Countryside?

The average sunshine duration in July is 10.1h.

When is the highest UV index?

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

What is the UV index intensity in July?

In July, the average daily maximum UV index in Countryside is 6. A UV Index reading of 6 to 7 represents 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
Countryside, IL

Average temperature in July - Countryside, IL
  • Average high temperature in July: 81.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in July: 66.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in July
Countryside, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Countryside, IL

Average wind speed in July - Countryside, IL
  • Average wind speed in July: 6.4mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in July
Countryside, IL

Average humidity in July - Countryside, IL
  • Average humidity in July: 77%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Countryside, IL

Average rainfall in July - Countryside, IL
  • Average rainfall in July: 3.86"

The wettest month (with the highest rainfall) is May (4.61").
The driest months (with the least rainfall) are November and December (1.77").

Average rainfall days in July
Countryside, IL

Average rainfall days in July - Countryside, IL
  • Average rainfall days in July: 18.7 days

The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in July
Countryside, IL

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

The month with the highest snowfall is February (5.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Countryside, IL

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

The month with the highest number of snowfall days is January (13.3 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
Countryside, IL

Average daylight in July / Average sunshine in July - Countryside, 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 12min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in July
Countryside, IL

Average sunshine days in July - Countryside, IL
  • Average sunshine days in July: 8.8 days

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is June (8.2 days).

Average UV index in July
Countryside, IL

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

The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in July
Countryside, IL

Average cloud cover in July - Countryside, IL
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in July
Countryside, IL

Average visibility in July - Countryside, IL
  • Average visibility in July: 6mi

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

Countryside, Illinois, USA

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