August weather forecast
Belknap, IL

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Weather in August

August, the last month of the summer in Belknap, is another hot month, with an average temperature varying between 86.5°F (30.3°C) and 66.7°F (19.3°C).

Temperature

The weather during August records an average high-temperature of a still hot 86.5°F (30.3°C), closely mirroring the preceding month. Throughout August, the average low-temperature records at a comfortable 66.7°F (19.3°C).

Heat index

The heat index in August is computed to be a fiery hot 98.6°F (37°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In Belknap, the average relative humidity in August is 76%.

Rainfall

In August, the rain falls for 11.9 days. Throughout August, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Belknap, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.

Snowfall

In Belknap, Illinois, snow does not fall in April through October.

Daylight

In August, the average length of the day is 13h and 33min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:03 pm. On the last day of August, in Belknap, sunrise is at 6:26 am and sunset at 7:25 pm CDT.

Sunshine

The average sunshine in August in Belknap is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Belknap, Illinois. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Belknap in August?

August temperatures vary between a high-temperature of 86.5°F (30.3°C) and a low-temperature of 66.7°F (19.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 98.6°F (37°C).

What is the average humidity in August in Belknap?

In Belknap, Illinois, the average relative humidity in August is 76%.

How many days does it rain in August in Belknap?

In Belknap, Illinois, in August, it is raining for 11.9 days, with typically 1.3" (33mm) of accumulated precipitation.

When it does not snow in Belknap?

April through October are months without snowfall.

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

In August, the average day length is 13h and 33min.

When is the sunrise / sunset in August in Belknap?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 8:03 pm. On the last day of the month, in Belknap, sunrise is at 6:26 am and sunset at 7:25 pm CDT.

How many hours of sunshine does Belknap have in August?

In August, the average sunshine duration in Belknap, Illinois, is 10.3h.

What is the month with the highest UV index in Belknap?

The months with the highest UV index in Belknap are May through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Belknap?

The average daily maximum UV index in August in Belknap is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
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
Belknap, IL

Average temperature in August - Belknap, IL
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in August
Belknap, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Belknap, IL

Average wind speed in August - Belknap, IL
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in August
Belknap, IL

Average humidity in August - Belknap, IL
  • Average humidity in August: 76%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Belknap, IL

Average rainfall in August - Belknap, IL
  • Average rainfall in August: 1.3"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in August
Belknap, IL

Average rainfall days in August - Belknap, IL
  • Average rainfall days in August: 11.9 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

Average snowfall in August
Belknap, IL

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

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Belknap, IL

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

The month with the highest number of snowfall days is January (3.3 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
Belknap, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in August
Belknap, IL

Average sunshine days in August - Belknap, IL
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

Average UV index in August
Belknap, IL

Average UV index in August - Belknap, IL
  • Average UV index in August: 6

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

Average cloud cover in August
Belknap, IL

Average cloud cover in August - Belknap, IL
  • Average cloud cover in August: 30

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in August
Belknap, IL

Average visibility in August - Belknap, IL
  • Average visibility in August: 6mi

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

Belknap, Illinois, USA

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