July weather forecast
Glendale Heights, IL

Share

Weather in July

July, like June, in Glendale Heights, Illinois, is another warm summer month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 81.5°F (27.5°C).

Temperature

In Glendale Heights, July is the month with the highest recorded average temperatures, measuring a high of 81.5°F (27.5°C) and a low of 64.9°F (18.3°C).

Heat index

The average heat index in July is appraised at a hot 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.

Humidity

In Glendale Heights, the average relative humidity in July is 79%.

Rainfall

In Glendale Heights, in July, it is raining for 14.3 days, with typically 1.26" (32mm) of accumulated precipitation. In Glendale Heights, Illinois, during the entire year, the rain falls for 119.1 days and collects up to 10.83" (275mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in July is 14h and 52min.
On the first day of the month, sunrise is at 5:21 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:45 am and sunset at 8:11 pm CDT.

Sunshine

July and August, with an average of 9.9h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Glendale Heights are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in July interprets into the following advice:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
[Resources]

Frequently asked questions

What is the warmest month in Glendale Heights?

July stands out as Glendale Heights's warmest month, with temperatures ranging between an average high of 81.5°F (27.5°C) and a low of 64.9°F (18.3°C).

What is the usual temperature for Glendale Heights in July?

The average high-temperature, in July, in Glendale Heights, is 81.5°F (27.5°C), while the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in July is appraised at 87.8°F (31°C).

What is the average humidity in July in Glendale Heights?

The average relative humidity in July in Glendale Heights is 79%.

How much does it rain in Glendale Heights in July?

In July, in Glendale Heights, Illinois, the rain falls for 14.3 days. Throughout July, 1.26" (32mm) of precipitation is accumulated.

When it does not snow in Glendale Heights?

May through September are months without snowfall.

How many hours of daylight does Glendale Heights have in July?

In Glendale Heights, the average day length in July is 14h and 52min.

What time are sunrise and sunset in July in Glendale Heights?

In July, on the first day of the month, sunrise is at 5:21 am and sunset at 8:31 pm. On the last day of the month, in Glendale Heights, sunrise is at 5:45 am and sunset at 8:11 pm CDT.

What is the month with the most sunshine in Glendale Heights?

July and August, with an average of 9.9h of sunshine, are months with the most sunshine in Glendale Heights.

How many hours of sunshine does Glendale Heights have in July?

In Glendale Heights, the average sunshine duration in July is 9.9h.

When is the highest UV index in Glendale Heights?

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

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

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Glendale Heights, IL

Average temperature in July - Glendale Heights, IL
  • Average high temperature in July: 81.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

[Resources]

Average pressure in July
Glendale Heights, IL

Average pressure in July - Glendale 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).

[Resources]

Average wind speed in July
Glendale Heights, IL

Average wind speed in July - Glendale Heights, IL
  • Average wind speed in July: 6.3mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

[Resources]

Average humidity in July
Glendale Heights, IL

Average humidity in July - Glendale Heights, IL
  • Average humidity in July: 79%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

[Resources]

Average rainfall in July
Glendale Heights, IL

Average rainfall in July - Glendale Heights, IL
  • Average rainfall in July: 1.26"

The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February, November and December (0.51").

[Resources]

Average rainfall days in July
Glendale Heights, IL

Average rainfall days in July - Glendale Heights, IL
  • Average rainfall days in July: 14.3 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is January (4.1 days).

[Resources]

Average snowfall in July
Glendale Heights, IL

Average snowfall in July - Glendale Heights, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in July
Glendale Heights, IL

Average snowfall days in July - Glendale Heights, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in July /
Average sunshine in July
Glendale Heights, IL

Average daylight in July / Average sunshine in July - Glendale 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: 9h and 5min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in July
Glendale Heights, IL

Average sunshine days in July - Glendale Heights, IL
  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (11.3 days).

[Resources]

Average UV index in July
Glendale Heights, IL

Average UV index in July - Glendale Heights, 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 and December (UV index 1).

[Resources]

Average cloud cover in July
Glendale Heights, IL

Average cloud cover in July - Glendale Heights, IL
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 32).

[Resources]

Average visibility in July
Glendale Heights, IL

Average visibility in July - Glendale 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).

[Resources]

Glendale Heights, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location