August weather forecast
Cropsey, IL

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Weather in August

The last month of the summer, August, is another warm month in Cropsey, Illinois, with an average temperature ranging between min 62.6°F (17°C) and max 79.7°F (26.5°C).

Temperature

August brings an average high-temperature of a still warm 79.7°F (26.5°C), nearly identical to the preceding month. August nights are marked by an average temperature drop to a comfortable 62.6°F (17°C).

Humidity

The average relative humidity in August is 83%.

Rainfall

In Cropsey, Illinois, during August, the rain falls for 13.3 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 130.5 rainfall days, and 17.44" (443mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Cropsey, the average length of the day in August is 13h and 44min.
On the first day of the month, sunrise is at 5:51 am and sunset at 8:08 pm. On the last day of August, in Cropsey, sunrise is at 6:20 am and sunset at 7:27 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

In Cropsey, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 5 suggests this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August in Cropsey?

Cropsey in August has an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 62.6°F (17°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 87.8°F (31°C).

What is the average humidity in August in Cropsey?

The average relative humidity in August in Cropsey, Illinois, is 83%.

How much does it rain in Cropsey in August?

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

When it does not snow in Cropsey?

May through September are months without snowfall.

How many hours of daylight does Cropsey have in August?

The average day length in August in Cropsey is 13h and 44min.

What time are sunrise and sunset in August in Cropsey?

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, in Cropsey, Illinois, sunrise is at 6:20 am and sunset at 7:27 pm CDT.

How long on average sun shines in August in Cropsey?

The average sunshine duration in August is 9.8h.

How high is the UV index in August in Cropsey?

In Cropsey, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Cropsey, IL

Average temperature in August - Cropsey, 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
Cropsey, IL

Average pressure in August - Cropsey, 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
Cropsey, IL

Average wind speed in August - Cropsey, 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
Cropsey, IL

Average humidity in August - Cropsey, 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
Cropsey, IL

Average rainfall in August - Cropsey, 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
Cropsey, IL

Average rainfall days in August - Cropsey, 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
Cropsey, IL

Average snowfall in August - Cropsey, 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
Cropsey, IL

Average snowfall days in August - Cropsey, 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
Cropsey, IL

Average daylight in August / Average sunshine in August - Cropsey, 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
Cropsey, IL

Average sunshine days in August - Cropsey, 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
Cropsey, IL

Average UV index in August - Cropsey, 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
Cropsey, IL

Average cloud cover in August - Cropsey, 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
Cropsey, IL

Average visibility in August - Cropsey, 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).

Cropsey, Illinois, USA

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