July weather forecast
Mill Creek, IL

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Weather in July

July is a tropical summer month in Mill Creek, Illinois, with an average temperature varying between 88.3°F (31.3°C) and 69.1°F (20.6°C).

Temperature

July stands out as Mill Creek's warmest month, with temperatures ranging between an average high of 88.3°F (31.3°C) and a low of 69.1°F (20.6°C).

Heat index

In July, the average heat index is appraised at a blistering 104°F (40°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In July, the average relative humidity in Mill Creek is 76%.

Rainfall

In Mill Creek, Illinois, during July, the rain falls for 15.9 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Mill Creek, during the entire year, the rain falls for 143 days and collects up to 27.44" (697mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Mill Creek, the average length of the day in July is 14h and 26min.
On the first day of the month, sunrise is at 5:40 am and sunset at 8:21 pm. On the last day of July, sunrise is at 6:01 am and sunset at 8:05 pm CDT.

Sunshine

With an average of 10.4h of sunshine, July has the most sunshine of the year.

UV index

May through August, 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 threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Mill Creek?

July, with an average high of 88.3°F (31.3°C) and a low of 69.1°F (20.6°C), signifies the warmest month of the year in Mill Creek.

How hot does it get in Mill Creek in July?

Mill Creek in July has an average high-temperature of 88.3°F (31.3°C) and an average low-temperature of 69.1°F (20.6°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in July is appraised at 104°F (40°C).

What is the average humidity in July in Mill Creek?

In Mill Creek, the average relative humidity in July is 76%.

How much does it rain in Mill Creek in July?

In Mill Creek, Illinois, in July, during 15.9 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow in Mill Creek?

May through September are months without snowfall in Mill Creek, Illinois.

How many hours of daylight does Mill Creek have in July?

In July, the average day length in Mill Creek is 14h and 26min.

When is the sunrise / sunset in July in Mill Creek?

On the first day of July in Mill Creek, Illinois, sunrise is at 5:40 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:05 pm CDT.

What month has the most sunshine in Mill Creek?

With an average of 10.4h of sunshine, July has the most sunshine of the year in Mill Creek, Illinois.

How many hours of sunshine does Mill Creek have in July?

In Mill Creek, the average sunshine duration in July is 10.4h.

What are the months with the highest UV index in Mill Creek?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Mill Creek, Illinois.

What is the UV index intensity in July in Mill Creek?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents 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
Mill Creek, IL

Average temperature in July - Mill Creek, IL
  • Average high temperature in July: 88.3°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in July: 69.1°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in July
Mill Creek, IL

Average pressure in July - Mill Creek, IL
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Mill Creek, IL

Average wind speed in July - Mill Creek, IL
  • Average wind speed in July: 5.7mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in July
Mill Creek, IL

Average humidity in July - Mill Creek, IL
  • Average humidity in July: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Mill Creek, IL

Average rainfall in July - Mill Creek, IL
  • Average rainfall in July: 2.48"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in July
Mill Creek, IL

Average rainfall days in July - Mill Creek, IL
  • Average rainfall days in July: 15.9 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in July
Mill Creek, IL

Average snowfall in July - Mill Creek, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Mill Creek, IL

Average snowfall days in July - Mill Creek, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (4.6 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
Mill Creek, IL

Average daylight in July / Average sunshine in July - Mill Creek, IL
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in July
Mill Creek, IL

Average sunshine days in July - Mill Creek, IL
  • Average sunshine days in July: 12.8 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in July
Mill Creek, IL

Average UV index in July - Mill Creek, IL
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in July
Mill Creek, IL

Average cloud cover in July - Mill Creek, IL
  • Average cloud cover in July: 30

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in July
Mill Creek, IL

Average visibility in July - Mill Creek, 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).

Mill Creek, Illinois, USA

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