August weather forecast
Casey, IA

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Casey, Iowa, with an average temperature fluctuating between 62.2°F (16.8°C) and 81°F (27.2°C).

Temperature

Casey experiences an average high-temperature of a still moderately hot 81°F (27.2°C) in August, marking an insignificant shift from 82.2°F (27.9°C) in July. Nightly temperatures drop to an average low of 62.2°F (16.8°C) in August.

Heat index

The heat index for August is evaluated at a tropical 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 12.8 days. Throughout August, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 117.3 rainfall days, and 19.09" (485mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Casey, the average length of the day in August is 13h and 47min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:44 am and sunset at 7:52 pm CDT.

Sunshine

In August, the average sunshine in Casey is 9.7h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Frequently asked questions

What is the temperature in August?

The high-temperature during August is 81°F (27.2°C) and the low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August is 79%.

How many days does it rain in August?

In Casey, during August, the rain falls for 12.8 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow?

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

What is the average length of the day in August?

In August, the average day length is 13h and 47min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:13 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:52 pm CDT.

How many hours of sunshine does Casey have in August?

In Casey, the average sunshine duration in August is 9.7h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In Casey, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health 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
Casey, IA

Average temperature in August - Casey, IA
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

Average pressure in August
Casey, IA

Average pressure in August - Casey, IA
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
Casey, IA

Average wind speed in August - Casey, IA
  • Average wind speed in August: 7.2mph

The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in August
Casey, IA

Average humidity in August - Casey, IA
  • Average humidity in August: 79%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Casey, IA

Average rainfall in August - Casey, IA
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in August
Casey, IA

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

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in August
Casey, IA

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

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Casey, IA

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

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Casey, 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 12min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in August
Casey, IA

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

The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in August
Casey, IA

Average UV index in August - Casey, 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 and December (UV index 1).

Average cloud cover in August
Casey, IA

Average cloud cover in August - Casey, IA
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 30).

Average visibility in August
Casey, IA

Average visibility in August - Casey, IA
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Casey, Iowa, USA

Weather forecast for your location

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