July weather forecast
Calumet Park, IL

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Weather in July

July, like June, in Calumet Park, Illinois, is another warm summer month, with an average temperature varying between 66.6°F (19.2°C) and 81°F (27.2°C).

Temperature

July brings the highest temperatures, with an average high of 81°F (27.2°C) and an average low of 66.6°F (19.2°C).

Heat index

July's average heat index is computed to be a tropical 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In July, the average relative humidity is 77%.

Rainfall

In July, the rain falls for 18 days. Throughout July, 2.8" (71mm) of precipitation is accumulated. Throughout the year, in Calumet Park, there are 147.7 rainfall days, and 23.62" (600mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Calumet Park, the average length of the day in July is 14h and 50min.
On the first day of the month, sunrise is at 5:20 am and sunset at 8:28 pm. On the last day of July, sunrise is at 5:44 am and sunset at 8:09 pm CDT.

Sunshine

The average sunshine in July is 10.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 6 in July translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

The month of July sees the average highest temperatures, reaching 81°F (27.2°C) at the peak and 66.6°F (19.2°C) at the low.

What is the temperature in July?

In July, in Calumet Park, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 66.6°F (19.2°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 86°F (30°C).

What is the average humidity in July?

The average relative humidity in July in Calumet Park is 77%.

How much does it rain in July?

In Calumet Park, during July, the rain falls for 18 days and regularly aggregates up to 2.8" (71mm) of precipitation.

When it does not snow?

In Calumet Park, snow does not fall in May through September.

How many hours of daylight does Calumet Park have in July?

In Calumet Park, the average day length in July is 14h and 50min.

What time are sunrise and sunset in July in Calumet Park?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:09 pm CDT.

How long on average sun shines in July?

In July, the average sunshine duration is 10.3h.

What is the month with the highest UV index?

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

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Calumet Park, IL

Average temperature in July - Calumet Park, IL
  • Average high temperature in July: 81°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°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 (18.9°F).

Average pressure in July
Calumet Park, IL

Average pressure in July - Calumet Park, 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
Calumet Park, IL

Average wind speed in July - Calumet Park, IL
  • Average wind speed in July: 6.6mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in July
Calumet Park, IL

Average humidity in July - Calumet Park, 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
Calumet Park, IL

Average rainfall in July - Calumet Park, IL
  • Average rainfall in July: 2.8"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").

Average rainfall days in July
Calumet Park, IL

Average rainfall days in July - Calumet Park, IL
  • Average rainfall days in July: 18 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in July
Calumet Park, IL

Average snowfall in July - Calumet Park, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Calumet Park, IL

Average snowfall days in July - Calumet Park, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (11.8 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
Calumet Park, IL

Average daylight in July / Average sunshine in July - Calumet Park, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in July
Calumet Park, IL

Average sunshine days in July - Calumet Park, IL
  • Average sunshine days in July: 9.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in July
Calumet Park, IL

Average UV index in July - Calumet Park, IL
  • Average UV index in July: 6

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

Average cloud cover in July
Calumet Park, IL

Average cloud cover in July - Calumet Park, IL
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in July
Calumet Park, IL

Average visibility in July - Calumet Park, 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).

Calumet Park, Illinois, USA

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