August weather forecast
Shenandoah, IA

Share

Weather in August

The last month of the summer, August, is another warm month in Shenandoah, Iowa, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 82.2°F (27.9°C).

Temperature

With the arrival of August, Shenandoah's average high-temperature registers at a still warm 82.2°F (27.9°C), indicating a subtle variation from the previous month. In the month of August, Shenandoah witnesses a consistent average low-temperature of 63.7°F (17.6°C).

Heat index

The heat index for August is evaluated at a hot 89.6°F (32°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

The average relative humidity in August in Shenandoah is 78%.

Rainfall

In Shenandoah, during August, the rain falls for 12.8 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 125.6 rainfall days, and 26.14" (664mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Shenandoah, Iowa.

Daylight

In August, the average length of the day in Shenandoah is 13h and 45min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:36 pm. On the last day of August, sunrise is at 6:48 am and sunset at 7:54 pm CDT.

Sunshine

In Shenandoah, the average sunshine in August is 9.9h.

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 risk from exposure to the Sun's UV radiation for average individuals.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
[Resources]

Frequently asked questions

What are the temperatures in Shenandoah in August?

The high-temperature, in August, in Shenandoah, is 82.2°F (27.9°C), while the low-temperature averages to 63.7°F (17.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 89.6°F (32°C).

What is the average humidity in August in Shenandoah?

In Shenandoah, Iowa, the average relative humidity in August is 78%.

How many days does it rain in August in Shenandoah?

In Shenandoah, Iowa, in August, during 12.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow in Shenandoah?

In Shenandoah, snow does not fall in May through September.

How many hours of daylight does Shenandoah have in August?

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

When is the sunrise / sunset in August in Shenandoah?

In August, on the first day of the month, sunrise is at 6:18 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:54 pm CDT.

How many hours of sunshine does Shenandoah have in August?

In Shenandoah, the average sunshine duration in August is 9.9h.

When is the highest UV index in Shenandoah?

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

What is the UV index reading in August in Shenandoah?

In Shenandoah, Iowa, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Shenandoah, IA

Average temperature in August - Shenandoah, IA
  • Average high temperature in August: 82.2°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).

[Resources]

Average pressure in August
Shenandoah, IA

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

[Resources]

Average wind speed in August
Shenandoah, IA

Average wind speed in August - Shenandoah, IA
  • Average wind speed in August: 6.9mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

[Resources]

Average humidity in August
Shenandoah, IA

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

The months with the highest relative humidity are January and July (79%).
The month with the lowest relative humidity is October (67%).

[Resources]

Average rainfall in August
Shenandoah, IA

Average rainfall in August - Shenandoah, IA
  • Average rainfall in August: 2.6"

The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is February (0.71").

[Resources]

Average rainfall days in August
Shenandoah, IA

Average rainfall days in August - Shenandoah, IA
  • Average rainfall days in August: 12.8 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (3.9 days).

[Resources]

Average snowfall in August
Shenandoah, IA

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

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in August
Shenandoah, IA

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

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

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

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 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

[Resources]

Average sunshine days in August
Shenandoah, IA

Average sunshine days in August - Shenandoah, IA
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.8 days).

[Resources]

Average UV index in August
Shenandoah, IA

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

[Resources]

Average cloud cover in August
Shenandoah, IA

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

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 26).

[Resources]

Average visibility in August
Shenandoah, IA

Average visibility in August - Shenandoah, 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).

[Resources]

Shenandoah, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location