August weather forecast
Le Roy, IL

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Weather in August

August, the last month of the summer in Le Roy, is also a moderately hot month, with an average temperature varying between 63.1°F (17.3°C) and 79.9°F (26.6°C).

Temperature

At the start of August, Le Roy's average high-temperature reaches a still moderately hot 79.9°F (26.6°C), subtly different from the preceding month. Le Roy experiences an average low-temperature of 63.1°F (17.3°C) in month of August.

Humidity

In August, the average relative humidity in Le Roy is 83%.

Rainfall

In Le Roy, during August, the rain falls for 13.7 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, in Le Roy, Illinois, there are 139 rainfall days, and 20.83" (529mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day in Le Roy is 13h and 43min.
On the first day of August in Le Roy, Illinois, sunrise is at 5:53 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:28 pm CDT.

Sunshine

The average sunshine in August in Le Roy, Illinois, is 9.8h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Le Roy?

The average high-temperature, in August, in Le Roy, is 79.9°F (26.6°C), while the average low-temperature is 63.1°F (17.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in July is evaluated at 86°F (30°C).

What is the average humidity in August in Le Roy?

In August, the average relative humidity in Le Roy, Illinois, is 83%.

How many days does it rain in August in Le Roy?

In Le Roy, during August, the rain falls for 13.7 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow in Le Roy?

In Le Roy, snow does not fall in May through October.

What is the average length of the day in August in Le Roy?

In Le Roy, the average day length in August is 13h and 43min.

When are sunrise and sunset in August in Le Roy?

In August, on the first day of the month, sunrise is at 5:53 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:28 pm CDT.

How long on average sun shines in August in Le Roy?

In August, the average sunshine duration in Le Roy, Illinois, is 9.8h.

What is the UV index reading in August in Le Roy?

In August, the average daily maximum UV index in Le Roy is 5. A UV Index reading of 3 to 5 represents a medium 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 August
Le Roy, IL

Average temperature in August - Le Roy, IL
  • Average high temperature in August: 79.9°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 (31.3°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in August
Le Roy, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Le Roy, IL

Average wind speed in August - Le Roy, IL
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Le Roy, IL

Average humidity in August - Le Roy, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Le Roy, IL

Average rainfall in August - Le Roy, IL
  • Average rainfall in August: 1.85"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is December (1.1").

Average rainfall days in August
Le Roy, IL

Average rainfall days in August - Le Roy, IL
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in August
Le Roy, IL

Average snowfall in August - Le Roy, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Le Roy, IL

Average snowfall days in August - Le Roy, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.8 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
Le Roy, IL

Average daylight in August / Average sunshine in August - Le Roy, 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 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Le Roy, IL

Average sunshine days in August - Le Roy, IL
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in August
Le Roy, IL

Average UV index in August - Le Roy, IL
  • Average UV index in August: 5

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

Average cloud cover in August
Le Roy, IL

Average cloud cover in August - Le Roy, IL
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in August
Le Roy, IL

Average visibility in August - Le Roy, 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).

Le Roy, Illinois, USA

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