August weather forecast
Oglesby, IL

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Weather in August

August, the last month of the summer in Oglesby, is another warm month, with an average temperature ranging between min 62.1°F (16.7°C) and max 79.5°F (26.4°C).

Temperature

During August, the average high-temperature is a still warm 79.5°F (26.4°C), maintaining a close resemblance to that of the preceding month. The mean low-temperature during August nights is a comfortable 62.1°F (16.7°C).

Humidity

In Oglesby, the average relative humidity in August is 84%.

Rainfall

In Oglesby, in August, during 15 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Oglesby, during the entire year, the rain falls for 151.4 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 47min.
On the first day of August, sunrise is at 5:52 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:30 pm CDT.

Sunshine

In Oglesby, the average sunshine in August is 9.7h.

UV index

The average daily maximum UV index in August in Oglesby is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: During August, 5 as the daily maximum UV index converts into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Oglesby?

In Oglesby, 79.5°F (26.4°C) is the average high-temperature and 62.1°F (16.7°C) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the average humidity in August in Oglesby?

The average relative humidity in August is 84%.

How many days does it rain in August in Oglesby?

In Oglesby, during August, the rain falls for 15 days and regularly aggregates up to 2.28" (58mm) of precipitation.

When it does not snow in Oglesby?

May through September are months without snowfall in Oglesby, Illinois.

What is the average length of the day in August in Oglesby?

The average day length in August in Oglesby is 13h and 47min.

What time are sunrise and sunset in August in Oglesby?

On the first day of August in Oglesby, sunrise is at 5:52 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:30 pm CDT.

How long on average sun shines in August in Oglesby?

In August, the average sunshine duration in Oglesby, Illinois, is 9.7h.

What is the UV index reading in August in Oglesby?

The average daily maximum UV index in August in Oglesby, Illinois, is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Oglesby, IL

Average temperature in August - Oglesby, IL
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in August
Oglesby, IL

Average pressure in August - Oglesby, 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 (29.91"Hg).

Average wind speed in August
Oglesby, IL

Average wind speed in August - Oglesby, IL
  • Average wind speed in August: 6.2mph

The windiest months (with the highest average wind speed) are January and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in August
Oglesby, IL

Average humidity in August - Oglesby, IL
  • Average humidity in August: 84%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Oglesby, IL

Average rainfall in August - Oglesby, IL
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is February (1.57").

Average rainfall days in August
Oglesby, IL

Average rainfall days in August - Oglesby, IL
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in August
Oglesby, IL

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

The month with the highest snowfall is January (4.37").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Oglesby, IL

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

The month with the highest number of snowfall days is January (12.1 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
Oglesby, IL

Average daylight in August / Average sunshine in August - Oglesby, IL
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 4min

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

Average sunshine days in August
Oglesby, IL

Average sunshine days in August - Oglesby, IL
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in August
Oglesby, IL

Average UV index in August - Oglesby, 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 and December (UV index 1).

Average cloud cover in August
Oglesby, IL

Average cloud cover in August - Oglesby, 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
Oglesby, IL

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

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

Oglesby, Illinois, USA

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