August weather forecast
Waltersburg, IL

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Weather in August

August, the last month of the summer in Waltersburg, is also a hot month, with an average temperature varying between 67.3°F (19.6°C) and 86.7°F (30.4°C).

Temperature

Transitioning into August, Waltersburg records an average high-temperature of a still tropical 86.7°F (30.4°C), almost identical to July's 88.3°F (31.3°C). In the month of August, the average low-temperature usually rests at an enjoyable 67.3°F (19.6°C).

Heat index

The heat index for August is estimated at a very hot 98.6°F (37°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in August is 75%.

Rainfall

In Waltersburg, in August, during 14.6 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Waltersburg, during the entire year, the rain falls for 160.9 days and collects up to 36.81" (935mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Waltersburg, 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

In Waltersburg, the average sunshine in August is 10.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

August temperatures vary between a high-temperature of 86.7°F (30.4°C) and a low-temperature of 67.3°F (19.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 98.6°F (37°C).

What is the average humidity in August?

In August, the average relative humidity is 75%.

How much does it rain in Waltersburg in August?

In August, the rain falls for 14.6 days. Throughout August, 2.68" (68mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

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

What time are sunrise and sunset in August?

In August, on the first day of the month, 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 many hours of sunshine does Waltersburg have in August?

The average sunshine duration in August is 10.4h.

When is the highest UV index?

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

What is the UV index intensity in August?

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

Average temperature in August - Waltersburg, 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
Waltersburg, IL

Average pressure in August - Waltersburg, 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
Waltersburg, IL

Average wind speed in August - Waltersburg, 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
Waltersburg, IL

Average humidity in August - Waltersburg, 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
Waltersburg, IL

Average rainfall in August - Waltersburg, 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 (1.57").

Average rainfall days in August
Waltersburg, IL

Average rainfall days in August - Waltersburg, 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
Waltersburg, IL

Average snowfall in August - Waltersburg, 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
Waltersburg, IL

Average snowfall days in August - Waltersburg, 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
Waltersburg, IL

Average daylight in August / Average sunshine in August - Waltersburg, 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
Waltersburg, IL

Average sunshine days in August - Waltersburg, 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
Waltersburg, IL

Average UV index in August - Waltersburg, 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
Waltersburg, IL

Average cloud cover in August - Waltersburg, IL
  • Average cloud cover in August: 28

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 27).

Average visibility in August
Waltersburg, IL

Average visibility in August - Waltersburg, 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).

Waltersburg, Illinois, USA

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