August weather forecast
Strawn, IL

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Weather in August

The last month of the summer, August, is another warm month in Strawn, Illinois, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 79.7°F (26.5°C).

Temperature

The beginning of August reveals an average high-temperature of a still moderately hot 79.7°F (26.5°C), showing minimal deviation from the previous month. Throughout August, Strawn experiences a low-temperature average of 62.6°F (17°C).

Humidity

The average relative humidity in August is 83%.

Rainfall

In Strawn, in August, it is raining for 13.3 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 130.5 rainfall days, and 17.44" (443mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Strawn, the average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 5:51 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:26 pm CDT.

Sunshine

In August, the average sunshine in Strawn is 9.8h.

UV index

In Strawn, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Strawn in August?

In August, the average high-temperature and low-temperature are 79.7°F (26.5°C) and 62.6°F (17°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 87.8°F (31°C).

What is the average humidity in August?

The average relative humidity in August is 83%.

How many days does it rain in August in Strawn?

In Strawn, Illinois, in August, it is raining for 13.3 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow?

In Strawn, snow does not fall in May through September.

What is the average length of the day in August?

In August, the average day length is 13h and 44min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:51 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:26 pm CDT.

How many hours of sunshine does Strawn have in August?

In August, the average sunshine duration is 9.8h.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Strawn, IL

Average temperature in August - Strawn, IL
  • Average high temperature in August: 79.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in August
Strawn, IL

Average pressure in August - Strawn, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Strawn, IL

Average wind speed in August - Strawn, IL
  • Average wind speed in August: 6.4mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in August
Strawn, IL

Average humidity in August - Strawn, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Strawn, IL

Average rainfall in August - Strawn, IL
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in August
Strawn, IL

Average rainfall days in August - Strawn, IL
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (5 days).

Average snowfall in August
Strawn, IL

Average snowfall in August - Strawn, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Strawn, IL

Average snowfall days in August - Strawn, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.6 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
Strawn, IL

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Strawn, IL

Average sunshine days in August - Strawn, IL
  • Average sunshine days in August: 13.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in August
Strawn, IL

Average UV index in August - Strawn, IL
  • Average UV index in August: 5

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

Average cloud cover in August
Strawn, IL

Average cloud cover in August - Strawn, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in August
Strawn, IL

Average visibility in August - Strawn, IL
  • Average visibility in August: 5mi

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

Strawn, Illinois, USA

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