August weather forecast
Armstrong, IA

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Weather in August

August, the last month of the summer in Armstrong, is also a moderately hot month, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 78.1°F (25.6°C).

Temperature

Transitioning into August, Armstrong experiences an average high-temperature of a still warm 78.1°F (25.6°C), marking a minor shift from the preceding month. An average nighttime temperature of 59.5°F (15.3°C) is recorded in Armstrong, Iowa, during August.

Humidity

The average relative humidity in August is 80%.

Rainfall

In Armstrong, Iowa, during August, the rain falls for 13.5 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 123.7 rainfall days, and 23.66" (601mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 55min.
On the first day of August, sunrise is at 6:08 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:54 pm CDT.

Sunshine

In Armstrong, the average sunshine in August is 9.6h.

UV index

In August, the average daily maximum UV index in Armstrong is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In August, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the temperature in August in Armstrong?

In Armstrong, 78.1°F (25.6°C) is the average high-temperature and 59.5°F (15.3°C) is the average low-temperature during August.

What is the average humidity in August in Armstrong?

In August, the average relative humidity in Armstrong is 80%.

How many days does it rain in August in Armstrong?

In August, the rain falls for 13.5 days. Throughout August, 1.93" (49mm) of precipitation is accumulated.

When it does not snow in Armstrong?

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

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

In August, the average day length in Armstrong is 13h and 55min.

When are sunrise and sunset in August in Armstrong?

In August, on the first day of the month, sunrise is at 6:08 am and sunset at 8:39 pm. On the last day of the month, in Armstrong, sunrise is at 6:41 am and sunset at 7:54 pm CDT.

How many hours of sunshine does Armstrong have in August?

The average sunshine duration in August in Armstrong is 9.6h.

What is the UV index reading in August in Armstrong?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Armstrong, IA

Average temperature in August - Armstrong, IA
  • Average high temperature in August: 78.1°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in August
Armstrong, IA

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

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

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Average wind speed in August
Armstrong, IA

Average wind speed in August - Armstrong, IA
  • Average wind speed in August: 7.7mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average humidity in August
Armstrong, IA

Average humidity in August - Armstrong, IA
  • Average humidity in August: 80%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in August
Armstrong, IA

Average rainfall in August - Armstrong, IA
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days in August
Armstrong, IA

Average rainfall days in August - Armstrong, IA
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in August
Armstrong, IA

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

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Armstrong, IA

Average snowfall days in August - Armstrong, 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
Armstrong, IA

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Armstrong, IA

Average sunshine days in August - Armstrong, IA
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (10.1 days).

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Average UV index in August
Armstrong, IA

Average UV index in August - Armstrong, 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 and February (UV index 1).

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Average cloud cover in August
Armstrong, IA

Average cloud cover in August - Armstrong, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and September (Cloud cover 31).

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Average visibility in August
Armstrong, IA

Average visibility in August - Armstrong, 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).

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Armstrong, Iowa, USA

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