August weather forecast
Rockwell City, IA

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Weather in August

Much like July, August in Rockwell City is well into the summer groove but with temperatures gently dipping. The city, lush from the summer growth and energized by the warm weather, exhibits an idyllic summer setting. The rainfall also sees a slight increase from 2.13" (54mm) to 2.68" (68mm). Mornings in August carry a unique charm, with the dew-soaked greenery glistening under the soft sunlight. Despite the dwindling daylight hours, the spirit of summer remains unabated throughout August in Rockwell City.

Temperature

August's arrival registers an average high-temperature of a still moderately hot 79.2°F (26.2°C), closely aligning with the temperature of the previous month. The nights of August in Rockwell City anticipate an average low-temperature of 61.2°F (16.2°C).

Humidity

In August, the average relative humidity in Rockwell City is 81%.

Rainfall

In Rockwell City, in August, it is raining for 14.3 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, in Rockwell City, there are 128 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

Snowfall

In Rockwell City, Iowa, snow does not fall in June through September.

Daylight

In Rockwell City, the average length of the day in August is 13h and 51min.
On the first day of August in Rockwell City, sunrise is at 6:11 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:53 pm CDT.

Sunshine

In Rockwell City, the average sunshine in August is 9.6h.

UV index

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August in Rockwell City?

The average high-temperature and low-temperature in Rockwell City during August are 79.2°F (26.2°C) and 61.2°F (16.2°C) respectively. In July, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in August in Rockwell City?

In August, the average relative humidity is 81%.

How many days does it rain in August in Rockwell City?

In Rockwell City, in August, during 14.3 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow in Rockwell City?

June through September are months without snowfall in Rockwell City.

What is the average length of the day in August in Rockwell City?

The average day length in August in Rockwell City is 13h and 51min.

What time are sunrise and sunset in August in Rockwell City?

On the first day of August in Rockwell City, sunrise is at 6:11 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:53 pm CDT.

How many hours of sunshine does Rockwell City have in August?

In Rockwell City, the average sunshine duration in August is 9.6h.

What is the UV index reading in August in Rockwell City?

The average daily maximum UV index in August in Rockwell City is 5. A UV Index of 3 to 5 symbolizes a medium 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
Rockwell City, IA

Average temperature in August - Rockwell City, IA
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in August: 61.2°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

Average pressure in August
Rockwell City, IA

Average pressure in August - Rockwell City, 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
Rockwell City, IA

Average wind speed in August - Rockwell City, IA
  • Average wind speed in August: 7.3mph

The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

Average humidity in August
Rockwell City, IA

Average humidity in August - Rockwell City, IA
  • Average humidity in August: 81%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).

Average rainfall in August
Rockwell City, IA

Average rainfall in August - Rockwell City, IA
  • Average rainfall in August: 2.68"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in August
Rockwell City, IA

Average rainfall days in August - Rockwell City, IA
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (3 days).

Average snowfall in August
Rockwell City, IA

Average snowfall in August - Rockwell City, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.31").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Rockwell City, IA

Average snowfall days in August - Rockwell City, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Rockwell City, IA

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 9h and 4min

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 6min).

Average sunshine days in August
Rockwell City, IA

Average sunshine days in August - Rockwell City, IA
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is June (9.9 days).

Average UV index in August
Rockwell City, IA

Average UV index in August - Rockwell City, 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 February (UV index 1).

Average cloud cover in August
Rockwell City, IA

Average cloud cover in August - Rockwell City, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).

Average visibility in August
Rockwell City, IA

Average visibility in August - Rockwell City, IA
  • Average visibility in August: 6mi

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

Rockwell City, Iowa, USA

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