August weather forecast
Walshville, IL

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Weather in August

The last month of the summer, August, is another warm month in Walshville, Illinois, with an average temperature ranging between max 82.6°F (28.1°C) and min 65.1°F (18.4°C).

Temperature

The onset of August notes an average high-temperature of a still warm 82.6°F (28.1°C), subtly shifted from July's 83.8°F (28.8°C). The month of August records an average low-temperature of 65.1°F (18.4°C) in Walshville.

Heat index

August's mean heat index is computed to be a hot 91.4°F (33°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In August, the average relative humidity in Walshville, Illinois, is 81%.

Rainfall

In Walshville, in August, it is raining for 12.4 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 125.2 rainfall days, and 16.3" (414mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Walshville, Illinois, the average length of the day in August is 13h and 39min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:30 pm CDT.

Sunshine

The average sunshine in August in Walshville is 10h.

UV index

The months with the highest UV index in Walshville are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Walshville during August?

In August, in Walshville, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 65.1°F (18.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 91.4°F (33°C).

What is the average humidity in August in Walshville?

In August, the average relative humidity in Walshville, Illinois, is 81%.

How many days does it rain in August in Walshville?

In Walshville, Illinois, in August, during 12.4 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow in Walshville?

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

How many hours of daylight does Walshville have in August?

In August, the average day length in Walshville is 13h and 39min.

What time are sunrise and sunset in August in Walshville?

On the first day of August, sunrise is at 5:59 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:30 pm CDT.

How long on average sun shines in August in Walshville?

In Walshville, the average sunshine duration in August is 10h.

When is the highest UV index in Walshville?

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

What is the UV index reading in August in Walshville?

In Walshville, Illinois, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Walshville, IL

Average temperature in August - Walshville, IL
  • Average high temperature in August: 82.6°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in August: 65.1°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in August
Walshville, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Walshville, IL

Average wind speed in August - Walshville, IL
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in August
Walshville, IL

Average humidity in August - Walshville, IL
  • Average humidity in August: 81%

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

Average rainfall in August
Walshville, IL

Average rainfall in August - Walshville, IL
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is June (2.48").
The driest month (with the least rainfall) is February (0.71").

Average rainfall days in August
Walshville, IL

Average rainfall days in August - Walshville, IL
  • Average rainfall days in August: 12.4 days

The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in August
Walshville, IL

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

The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Walshville, IL

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

The month with the highest number of snowfall days is January (6.3 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
Walshville, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Walshville, IL

Average sunshine days in August - Walshville, IL
  • Average sunshine days in August: 15.2 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is June (12 days).

Average UV index in August
Walshville, IL

Average UV index in August - Walshville, 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
Walshville, IL

Average cloud cover in August - Walshville, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

Average visibility in August
Walshville, IL

Average visibility in August - Walshville, 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).

Walshville, Illinois, USA

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