August weather forecast
Old Brownfield, IL

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Weather in August

The last month of the summer, August, is another tropical month in Old Brownfield, Illinois, with an average temperature fluctuating between 67.3°F (19.6°C) and 86.7°F (30.4°C).

Temperature

Old Brownfield's August showcases an average high-temperature of a still tropical 86.7°F (30.4°C), hardly distinct from July's 88.3°F (31.3°C). Old Brownfield observes an average low-temperature of 67.3°F (19.6°C) during August nights.

Heat index

August's heat index is evaluated at a torrid 98.6°F (37°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In Old Brownfield, during August, the rain falls for 14.6 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Old Brownfield, during the entire year, the rain falls for 160.7 days and collects up to 36.73" (933mm) of precipitation.

Snowfall

In Old Brownfield, snow does not fall in May through October.

Daylight

In Old Brownfield, the average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:01 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:24 pm CDT.

Sunshine

The average sunshine in August is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In Old Brownfield, 86.7°F (30.4°C) is the average high-temperature and 67.3°F (19.6°C) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 98.6°F (37°C).

What is the average humidity in August?

The average relative humidity in August is 75%.

How much does it rain in August?

In Old Brownfield, during August, the rain falls for 14.6 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow?

In Old Brownfield, snow does not fall in May through October.

What is the average length of the day in August?

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

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:59 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:24 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.4h.

What is the month with the highest UV index?

May 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 Old Brownfield, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to 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
Old Brownfield, IL

Average temperature in August - Old Brownfield, IL
  • Average high temperature in August: 86.7°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure in August
Old Brownfield, IL

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Old Brownfield, IL

Average wind speed in August - Old Brownfield, IL
  • Average wind speed in August: 5.6mph

The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in August
Old Brownfield, IL

Average humidity in August - Old Brownfield, IL
  • Average humidity in August: 75%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Old Brownfield, IL

Average rainfall in August - Old Brownfield, IL
  • Average rainfall in August: 2.68"

The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in August
Old Brownfield, IL

Average rainfall days in August - Old Brownfield, IL
  • Average rainfall days in August: 14.6 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).

Average snowfall in August
Old Brownfield, IL

Average snowfall in August - Old Brownfield, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Old Brownfield, IL

Average snowfall days in August - Old Brownfield, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Old Brownfield, IL

Average daylight in August / Average sunshine in August - Old Brownfield, 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 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in August
Old Brownfield, IL

Average sunshine days in August - Old Brownfield, IL
  • Average sunshine days in August: 14.4 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).

Average UV index in August
Old Brownfield, IL

Average UV index in August - Old Brownfield, 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
Old Brownfield, IL

Average cloud cover in August - Old Brownfield, IL
  • Average cloud cover in August: 28

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).

Average visibility in August
Old Brownfield, IL

Average visibility in August - Old Brownfield, 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).

Old Brownfield, Illinois, USA

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