August weather forecast
Plano, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Plano, Iowa, with an average temperature varying between 82°F (27.8°C) and 63.5°F (17.5°C).

Temperature

Plano experiences a subtle adjustment in high-temperatures to a still warm 82°F (27.8°C) with the onset of August, maintaining near parity with July's 83.1°F (28.4°C). In August, the nighttime temperature lowers to an average of 63.5°F (17.5°C).

Heat index

In August, the heat index is evaluated at a tropical 87.8°F (31°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 of high significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in August is 78%.

Rainfall

In Plano, in August, during 14.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In Plano, during the entire year, the rain falls for 143.2 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

In Plano, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of August, sunrise is at 6:09 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:45 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 5 during August translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

In August, the average high-temperature and low-temperature are 82°F (27.8°C) and 63.5°F (17.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in August?

The average relative humidity in August is 78%.

How much does it rain in August?

In Plano, during August, the rain falls for 14.8 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow?

In Plano, snow does not fall in June through September.

How many hours of daylight does Plano have in August?

The average day length in August is 13h and 45min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:09 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:45 pm CDT.

How many hours of sunshine does Plano have in August?

In August, the average sunshine duration is 9.9h.

What is the UV index intensity in August in Plano?

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Plano, IA

Average temperature in August - Plano, IA
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in August
Plano, IA

Average pressure in August - Plano, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in August
Plano, IA

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

The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in August
Plano, IA

Average humidity in August - Plano, IA
  • Average humidity in August: 78%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Plano, IA

Average rainfall in August - Plano, IA
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in August
Plano, IA

Average rainfall days in August - Plano, IA
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).

Average snowfall in August
Plano, IA

Average snowfall in August - Plano, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Plano, IA

Average snowfall days in August - Plano, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Plano, IA

Average daylight in August / Average sunshine in August - Plano, IA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in August
Plano, IA

Average sunshine days in August - Plano, IA
  • Average sunshine days in August: 12.9 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).

Average UV index in August
Plano, IA

Average UV index in August - Plano, IA
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in August
Plano, IA

Average cloud cover in August - Plano, IA
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in August
Plano, IA

Average visibility in August - Plano, 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).

Plano, Iowa, USA

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