July weather forecast
Downers Grove, IA

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Weather in July

July, the same as June, is a moderately hot summer month in Downers Grove, Iowa, with an average temperature fluctuating between 80.1°F (26.7°C) and 63.3°F (17.4°C).

Temperature

Temperature records mark July as the warmest month, with highs averaging 80.1°F (26.7°C) and lows at 63.3°F (17.4°C).

Humidity

In July, the average relative humidity in Downers Grove is 85%.

Rainfall

In Downers Grove, in July, it is raining for 15.8 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, in Downers Grove, there are 142.5 rainfall days, and 28.27" (718mm) of precipitation is accumulated.

Snowfall

In Downers Grove, snow does not fall in May through September.

Daylight

In Downers Grove, the average length of the day in July is 14h and 54min.
On the first day of July, sunrise is at 5:32 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:25 pm CDT.

Sunshine

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

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In July, a regular UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

Downers Grove records the warmest temperatures in July, averaging a high of 80.1°F (26.7°C) and a low of 63.3°F (17.4°C).

What is the usual temperature for Downers Grove in July?

During July, Downers Grove experiences an average high-temperature of 80.1°F (26.7°C) and a low-temperature of 63.3°F (17.4°C).

What is the average humidity in July?

In July, the average relative humidity is 85%.

How much does it rain in July?

In Downers Grove, in July, during 15.8 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Downers Grove have in July?

In July, the average day length is 14h and 54min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:32 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:25 pm CDT.

What is the month with the most sunshine?

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

How long on average sun shines in July?

In Downers Grove, the average sunshine duration in July is 9.9h.

When is the highest UV index?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health risk from 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
Downers Grove, IA

Average temperature in July - Downers Grove, IA
  • Average high temperature in July: 80.1°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in July: 63.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

Average pressure in July
Downers Grove, IA

Average pressure in July - Downers Grove, IA
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in July
Downers Grove, IA

Average wind speed in July - Downers Grove, IA
  • Average wind speed in July: 7mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in July
Downers Grove, IA

Average humidity in July - Downers Grove, IA
  • Average humidity in July: 85%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).

Average rainfall in July
Downers Grove, IA

Average rainfall in July - Downers Grove, IA
  • Average rainfall in July: 2.83"

The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").

Average rainfall days in July
Downers Grove, IA

Average rainfall days in July - Downers Grove, IA
  • Average rainfall days in July: 15.8 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in July
Downers Grove, IA

Average snowfall in July - Downers Grove, IA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Downers Grove, IA

Average snowfall days in July - Downers Grove, IA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (12.1 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
Downers Grove, IA

Average daylight in July / Average sunshine in July - Downers Grove, IA
  • 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 48min).

Average sunshine days in July
Downers Grove, IA

Average sunshine days in July - Downers Grove, IA
  • Average sunshine days in July: 12.3 days

The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in July
Downers Grove, IA

Average UV index in July - Downers Grove, IA
  • Average UV index in July: 6

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

Average cloud cover in July
Downers Grove, IA

Average cloud cover in July - Downers Grove, IA
  • Average cloud cover in July: 34

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in July
Downers Grove, IA

Average visibility in July - Downers Grove, IA
  • Average visibility in July: 5mi

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

Downers Grove, Iowa, USA

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