August weather forecast
Peters Creek, IL

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Weather in August

The last month of the summer, August, is another warm month in Peters Creek, Illinois, with an average temperature fluctuating between 66.7°F (19.3°C) and 85.3°F (29.6°C).

Temperature

In Peters Creek, August's average high-temperature stands at a moderately hot 85.3°F (29.6°C), closely related to the preceding month. An average minimum temperature of 66.7°F (19.3°C) is recorded during the month of August.

Heat index

For August, the heat index is computed to be a very hot 95°F (35°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Note that heat index values are valued for light wind and location in the shade. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' 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. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In August, the rain falls for 14.2 days. Throughout August, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 148.8 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Snowfall

In Peters Creek, snow does not fall in May through October.

Daylight

In Peters Creek, the average length of the day in August is 13h and 34min.
On the first day of August, sunrise is at 5:57 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:22 pm CDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 in August translates into this advice:
Deflect overexposure. Sun protection is a necessity. 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. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In August, in Peters Creek, the average high-temperature is 85.3°F (29.6°C), and the average low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 95°F (35°C).

What is the average humidity in August?

The average relative humidity in August is 76%.

How many days does it rain in August?

In Peters Creek, in August, it is raining for 14.2 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Peters Creek have in August?

In August, the average day length is 13h and 34min.

When are sunrise and sunset in August?

On the first day of August in Peters Creek, sunrise is at 5:57 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:22 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.4h.

When is the highest UV index?

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

How high is the UV index in August?

In Peters Creek, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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 August
Peters Creek, IL

Average temperature in August - Peters Creek, IL
  • Average high temperature in August: 85.3°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in August
Peters Creek, IL

Average pressure in August - Peters Creek, IL
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Peters Creek, IL

Average wind speed in August - Peters Creek, IL
  • Average wind speed in August: 5.7mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in August
Peters Creek, IL

Average humidity in August - Peters Creek, IL
  • Average humidity in August: 76%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Peters Creek, IL

Average rainfall in August - Peters Creek, IL
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in August
Peters Creek, IL

Average rainfall days in August - Peters Creek, IL
  • Average rainfall days in August: 14.2 days

The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in August
Peters Creek, IL

Average snowfall in August - Peters Creek, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Peters Creek, IL

Average snowfall days in August - Peters Creek, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Peters Creek, IL

Average daylight in August / Average sunshine in August - Peters Creek, IL
  • Average daylight in August: 13h and 4min

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 August: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in August
Peters Creek, IL

Average sunshine days in August - Peters Creek, IL
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).

Average UV index in August
Peters Creek, IL

Average UV index in August - Peters Creek, IL
  • Average UV index in August: 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 August
Peters Creek, IL

Average cloud cover in August - Peters Creek, IL
  • Average cloud cover in August: 28

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).

Average visibility in August
Peters Creek, IL

Average visibility in August - Peters Creek, IL
  • Average visibility in August: 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).

Peters Creek, Illinois, USA

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