July weather forecast
Grandwood Park, IL

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Weather in July

July, the same as June, is another warm summer month in Grandwood Park, Illinois, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 79.9°F (26.6°C).

Temperature

July registers as the month with the highest average temperatures, reaching 79.9°F (26.6°C) at its peak and 64.4°F (18°C) at the lowest.

Humidity

In July, the average relative humidity is 80%.

Rainfall

In July, the rain falls for 17.5 days. Throughout July, 2.48" (63mm) of precipitation is accumulated. In Grandwood Park, during the entire year, the rain falls for 142.3 days and collects up to 21.97" (558mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Grandwood Park, the average length of the day in July is 14h and 55min.
On the first day of July, sunrise is at 5:19 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:12 pm CDT.

Sunshine

In July, the average sunshine 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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during July leads to these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

Grandwood Park's temperature records reveal July as the warmest month, marked by average highs of 79.9°F (26.6°C) and lows of 64.4°F (18°C).

What is the average July temperature?

Grandwood Park in July has an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 64.4°F (18°C).

What is the average humidity in July?

In Grandwood Park, the average relative humidity in July is 80%.

How much does it rain in July?

In Grandwood Park, during July, the rain falls for 17.5 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow?

In Grandwood Park, snow does not fall in June through September.

What is the average length of the day in July?

In Grandwood Park, the average day length in July is 14h and 55min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:19 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:12 pm CDT.

How long on average sun shines in July?

In July, the average sunshine duration is 10.1h.

When is the highest UV index?

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

What is the UV index intensity in July in Grandwood Park?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Grandwood Park, IL

Average temperature in July - Grandwood Park, IL
  • Average high temperature in July: 79.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.5°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 (16.5°F).

Average pressure in July
Grandwood Park, IL

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

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Grandwood Park, IL

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in July
Grandwood Park, IL

Average humidity in July - Grandwood Park, IL
  • Average humidity in July: 80%

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

Average rainfall in July
Grandwood Park, IL

Average rainfall in July - Grandwood Park, IL
  • Average rainfall in July: 2.48"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is December (0.98").

Average rainfall days in July
Grandwood Park, IL

Average rainfall days in July - Grandwood Park, IL
  • Average rainfall days in July: 17.5 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5 days).

Average snowfall in July
Grandwood Park, IL

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

The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Grandwood Park, IL

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

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Grandwood Park, IL

Average daylight in July / Average sunshine in July - Grandwood 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 6min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in July
Grandwood Park, IL

Average sunshine days in July - Grandwood Park, IL
  • Average sunshine days in July: 11.1 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in July
Grandwood Park, IL

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

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

Average cloud cover in July
Grandwood Park, IL

Average cloud cover in July - Grandwood Park, IL
  • Average cloud cover in July: 30

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 30).

Average visibility in July
Grandwood Park, IL

Average visibility in July - Grandwood Park, IL
  • Average visibility in July: 6mi

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

Grandwood Park, Illinois, USA

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