August weather forecast
Red Oak, IA

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Weather in August

August, the last month of the summer in Red Oak, is another warm month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 81.9°F (27.7°C).

Temperature

The high-temperature average in August for Red Oak is a still warm 81.9°F (27.7°C), staying closely aligned with July's conditions. In August, the nighttime temperature lowers to an average of 63.1°F (17.3°C).

Heat index

The heat index for August is calculated to be a hot 87.8°F (31°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
Heat index determinations are made taking into account the shade and light air movements. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Red Oak, in August, during 13 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 117.2 rainfall days, and 21.77" (553mm) of precipitation is accumulated.

Snowfall

In Red Oak, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 46min.
On the first day of August, sunrise is at 6:17 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:54 pm CDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The average high-temperature, in August, in Red Oak, is 81.9°F (27.7°C), while the average low-temperature is 63.1°F (17.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In Red Oak, the average relative humidity in August is 79%.

How many days does it rain in August?

In Red Oak, in August, during 13 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

When it does not snow?

In Red Oak, snow does not fall in May through September.

How many hours of daylight does Red Oak have in August?

In August, the average day length is 13h and 46min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:17 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:54 pm CDT.

How many hours of sunshine does Red Oak have in August?

In Red Oak, the average sunshine duration in August is 9.8h.

What is the month with the highest UV index?

June 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 August, the average daily maximum UV index is 6. A UV Index reading 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
Red Oak, IA

Average temperature in August - Red Oak, IA
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in August
Red Oak, IA

Average pressure in August - Red Oak, IA
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in August
Red Oak, IA

Average wind speed in August - Red Oak, IA
  • Average wind speed in August: 7mph

The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in August
Red Oak, IA

Average humidity in August - Red Oak, IA
  • Average humidity in August: 79%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (68%).

Average rainfall in August
Red Oak, IA

Average rainfall in August - Red Oak, IA
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is June (4.06").
The driest months (with the least rainfall) are January and February (0.63").

Average rainfall days in August
Red Oak, IA

Average rainfall days in August - Red Oak, IA
  • Average rainfall days in August: 13 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in August
Red Oak, IA

Average snowfall in August - Red Oak, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Red Oak, IA

Average snowfall days in August - Red Oak, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.9 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
Red Oak, IA

Average daylight in August / Average sunshine in August - Red Oak, IA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in August
Red Oak, IA

Average sunshine days in August - Red Oak, IA
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is December (23.1 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in August
Red Oak, IA

Average UV index in August - Red Oak, IA
  • 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, October, November and December (UV index 2).

Average cloud cover in August
Red Oak, IA

Average cloud cover in August - Red Oak, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in August
Red Oak, IA

Average visibility in August - Red Oak, IA
  • 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).

Red Oak, Iowa, USA

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