August weather forecast
Bluff Springs, IL

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Weather in August

The last month of the summer, August, is another warm month in Bluff Springs, Illinois, with an average temperature varying between 83.1°F (28.4°C) and 64.4°F (18°C).

Temperature

Bluff Springs's August showcases an average high-temperature of a still warm 83.1°F (28.4°C), hardly distinct from July's 83.3°F (28.5°C). Throughout August, an average nighttime temperature of 64.4°F (18°C) is experienced.

Heat index

In August, the average heat index is evaluated at a tropical 91.4°F (33°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In Bluff Springs, the average relative humidity in August is 79%.

Rainfall

In Bluff Springs, during August, the rain falls for 12.7 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Bluff Springs, during the entire year, the rain falls for 142.2 days and collects up to 27.95" (710mm) of precipitation.

Snowfall

In Bluff Springs, snow does not fall in May through September.

Daylight

In Bluff Springs, the average length of the day in August is 13h and 42min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:33 pm CDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In August, the average high-temperature and low-temperature are 83.1°F (28.4°C) and 64.4°F (18°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 91.4°F (33°C).

What is the average humidity in August?

In Bluff Springs, the average relative humidity in August is 79%.

How much does it rain in August?

In Bluff Springs, in August, it is raining for 12.7 days, with typically 2.05" (52mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In August, the average day length is 13h and 42min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:33 pm CDT.

How many hours of sunshine does Bluff Springs have in August?

The average sunshine duration in August is 9.9h.

What are the months with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high 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
Bluff Springs, IL

Average temperature in August - Bluff Springs, IL
  • Average high temperature in August: 83.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in August: 64.4°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in August
Bluff Springs, IL

Average pressure in August - Bluff Springs, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Bluff Springs, IL

Average wind speed in August - Bluff Springs, IL
  • Average wind speed in August: 6.3mph

The windiest months (with the highest average wind speed) are January, February and April (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in August
Bluff Springs, IL

Average humidity in August - Bluff Springs, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Bluff Springs, IL

Average rainfall in August - Bluff Springs, IL
  • Average rainfall in August: 2.05"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is December (1.61").

Average rainfall days in August
Bluff Springs, IL

Average rainfall days in August - Bluff Springs, IL
  • Average rainfall days in August: 12.7 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in August
Bluff Springs, IL

Average snowfall in August - Bluff Springs, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Bluff Springs, IL

Average snowfall days in August - Bluff Springs, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.1 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
Bluff Springs, IL

Average daylight in August / Average sunshine in August - Bluff Springs, 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 months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in August
Bluff Springs, IL

Average sunshine days in August - Bluff Springs, IL
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in August
Bluff Springs, IL

Average UV index in August - Bluff Springs, IL
  • Average UV index in August: 6

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

Average cloud cover in August
Bluff Springs, IL

Average cloud cover in August - Bluff Springs, IL
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 30).

Average visibility in August
Bluff Springs, IL

Average visibility in August - Bluff Springs, IL
  • Average visibility in August: 5mi

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

Bluff Springs, Illinois, USA

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