August weather forecast
Arnold, IA

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Weather in August

August, the last month of the summer in Arnold, is another warm month, with an average temperature fluctuating between 61°F (16.1°C) and 79°F (26.1°C).

Temperature

Arnold transitions into August recording an average high-temperature of a still warm 79°F (26.1°C), closely aligning with the preceding month's temperature. Arnold experiences a mean low-temperature of 61°F (16.1°C) during August.

Humidity

In Arnold, Iowa, the average relative humidity in August is 81%.

Rainfall

In Arnold, during August, the rain falls for 13.1 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Arnold, during the entire year, the rain falls for 130.6 days and collects up to 25" (635mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Arnold is 13h and 52min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:37 pm. On the last day of August, in Arnold, sunrise is at 6:41 am and sunset at 7:52 pm CDT.

Sunshine

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

UV index

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 5 during August leads to these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What is the temperature in August in Arnold?

The high-temperature, in August, in Arnold, is 79°F (26.1°C), while the low-temperature averages to 61°F (16.1°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in August in Arnold?

In August, the average relative humidity is 81%.

How many days does it rain in August in Arnold?

In August, the rain falls for 13.1 days. Throughout August, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Arnold?

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

What is the average length of the day in August in Arnold?

In Arnold, Iowa, the average day length in August is 13h and 52min.

When are sunrise and sunset in August in Arnold?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:37 pm. On the last day of the month, in Arnold, Iowa, sunrise is at 6:41 am and sunset at 7:52 pm CDT.

How many hours of sunshine does Arnold have in August?

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

What is the UV index intensity in August in Arnold?

In Arnold, Iowa, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe 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
Arnold, IA

Average temperature in August - Arnold, IA
  • Average high temperature in August: 79°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in August: 61°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

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Average pressure in August
Arnold, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in August
Arnold, IA

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

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).

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Average humidity in August
Arnold, IA

Average humidity in August - Arnold, IA
  • Average humidity in August: 81%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in August
Arnold, IA

Average rainfall in August - Arnold, IA
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in August
Arnold, IA

Average rainfall days in August - Arnold, IA
  • Average rainfall days in August: 13.1 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.7 days).

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Average snowfall in August
Arnold, IA

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

The month with the highest snowfall is February (5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Arnold, IA

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

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

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Average sunshine days in August
Arnold, IA

Average sunshine days in August - Arnold, IA
  • Average sunshine days in August: 15.7 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index in August
Arnold, IA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Arnold, IA

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

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 30).

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Average visibility in August
Arnold, IA

Average visibility in August - Arnold, IA
  • Average visibility in August: 6mi

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

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Arnold, Iowa, USA

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