August weather forecast
Parkersburg, IL

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Weather in August

August, the last month of the summer in Parkersburg, is also a moderately hot month, with an average temperature fluctuating between 65.7°F (18.7°C) and 82.8°F (28.2°C).

Temperature

August's arrival brings an average high-temperature of a still moderately hot 82.8°F (28.2°C), demonstrating subtle variation from the preceding month. During August, the nighttime temperature averages of 65.7°F (18.7°C).

Heat index

For most parts of August, the heat index is appraised at a hot 91.4°F (33°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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.

Humidity

The average relative humidity in August is 80%.

Rainfall

In Parkersburg, in August, it is raining for 13.2 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 152.3 rainfall days, and 27.99" (711mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 37min.
On the first day of August, sunrise is at 5:54 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:23 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

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 health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, an average UV index of 6 transforms into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

How hot is it in August?

The high-temperature, in August, in Parkersburg, records 82.8°F (28.2°C), while the low-temperature is 65.7°F (18.7°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 91.4°F (33°C).

What is the average humidity in August?

The average relative humidity in August is 80%.

How much does it rain in August?

In Parkersburg, in August, during 13.2 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow?

In Parkersburg, Illinois, snow does not fall in May through October.

How many hours of daylight does Parkersburg have in August?

The average day length in August is 13h and 37min.

What time are sunrise and sunset in August in Parkersburg?

In August, on the first day of the month, sunrise is at 5:54 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:23 pm CDT.

How many hours of sunshine does Parkersburg have in August?

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

When is the highest UV index?

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

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from 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
Parkersburg, IL

Average temperature in August - Parkersburg, IL
  • Average high temperature in August: 82.8°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in August: 65.7°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 (24.3°F).

Average pressure in August
Parkersburg, IL

Average pressure in August - Parkersburg, 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 (29.93"Hg).

Average wind speed in August
Parkersburg, IL

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

The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in August
Parkersburg, IL

Average humidity in August - Parkersburg, IL
  • Average humidity in August: 80%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Parkersburg, IL

Average rainfall in August - Parkersburg, IL
  • Average rainfall in August: 2.13"

The wettest month (with the highest rainfall) is April (4.09").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Parkersburg, IL

Average rainfall days in August - Parkersburg, IL
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in August
Parkersburg, IL

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

The month with the highest snowfall is January (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Parkersburg, IL

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

The month with the highest number of snowfall days is January (5.9 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
Parkersburg, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Parkersburg, IL

Average sunshine days in August - Parkersburg, IL
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in August
Parkersburg, IL

Average UV index in August - Parkersburg, 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, November and December (UV index 2).

Average cloud cover in August
Parkersburg, IL

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

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in August
Parkersburg, IL

Average visibility in August - Parkersburg, 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).

Parkersburg, Illinois, USA

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