July weather forecast
Palos Heights, IL

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Weather in July

July, like June, in Palos Heights, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 81°F (27.2°C) and 66.6°F (19.2°C).

Temperature

July, characterized by an average high temperature of 81°F (27.2°C) and a low temperature of 66.6°F (19.2°C), is generally the warmest month.

Heat index

July's mean heat index is estimated at a hot 86°F (30°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In July, the average relative humidity is 77%.

Rainfall

In Palos Heights, during July, the rain falls for 18 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Palos Heights, Illinois, during the entire year, the rain falls for 147.7 days and collects up to 23.62" (600mm) of precipitation.

Snowfall

In Palos Heights, Illinois, snow does not fall in May through September.

Daylight

In July, the average length of the day is 14h and 50min.
On the first day of the month, sunrise is at 5:20 am and sunset at 8:29 pm. On the last day of July, in Palos Heights, Illinois, sunrise is at 5:45 am and sunset at 8:09 pm CDT.

Sunshine

In Palos Heights, the average sunshine in July is 10.3h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 6 in July translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in Palos Heights?

Palos Heights's July weather, with an average high temperature of 81°F (27.2°C) and an average low temperature of 66.6°F (19.2°C), tends to be the warmest of the year.

What is the average July temperature in Palos Heights?

The high-temperature in Palos Heights during July is 81°F (27.2°C) and the low-temperature is 66.6°F (19.2°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in July in Palos Heights?

The average relative humidity in July in Palos Heights is 77%.

How many days does it rain in July in Palos Heights?

In Palos Heights, in July, it is raining for 18 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Palos Heights?

May through September are months without snowfall in Palos Heights.

What is the average length of the day in July in Palos Heights?

The average day length in July is 14h and 50min.

When are sunrise and sunset in July in Palos Heights?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:29 pm. On the last day of the month, in Palos Heights, Illinois, sunrise is at 5:45 am and sunset at 8:09 pm CDT.

How long on average sun shines in July in Palos Heights?

In Palos Heights, Illinois, the average sunshine duration in July is 10.3h.

What is the month with the highest UV index in Palos Heights?

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

What is the UV index reading in July in Palos Heights?

In July, the average daily maximum UV index in Palos Heights, Illinois, is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Palos Heights, IL

Average temperature in July - Palos Heights, 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
Palos Heights, IL

Average pressure in July - Palos Heights, 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
Palos Heights, IL

Average wind speed in July - Palos Heights, 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
Palos Heights, IL

Average humidity in July - Palos Heights, 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
Palos Heights, IL

Average rainfall in July - Palos Heights, 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
Palos Heights, IL

Average rainfall days in July - Palos Heights, 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
Palos Heights, IL

Average snowfall in July - Palos Heights, 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
Palos Heights, IL

Average snowfall days in July - Palos Heights, 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
Palos Heights, IL

Average daylight in July / Average sunshine in July - Palos Heights, 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
Palos Heights, IL

Average sunshine days in July - Palos Heights, 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
Palos Heights, IL

Average UV index in July - Palos Heights, 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
Palos Heights, IL

Average cloud cover in July - Palos Heights, 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
Palos Heights, IL

Average visibility in July - Palos Heights, 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).

Palos Heights, Illinois, USA

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