August weather forecast
Marble Rock, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Marble Rock, Iowa, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 59.9°F (15.5°C).

Temperature

The onset of August notes an average high-temperature of a still moderately hot 77.5°F (25.3°C), subtly shifted from July's 79.3°F (26.3°C). Nighttime temperatures in Marble Rock hover around an average low of 59.9°F (15.5°C) in August.

Humidity

The average relative humidity in August is 82%.

Rainfall

In August, the rain falls for 12.6 days. Throughout August, 2.36" (60mm) of precipitation is accumulated. In Marble Rock, Iowa, during the entire year, the rain falls for 129.5 days and collects up to 25.98" (660mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 53min.
On the first day of August in Marble Rock, Iowa, sunrise is at 6:03 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:47 pm CDT.

Sunshine

July and August, with an average of 9.7h of sunshine, are months with the most sunshine.

UV index

In August, the average daily maximum UV index 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 average individuals.
Note: An average UV index of 5 in August transforms into this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Marble Rock in August?

The high-temperature, in August, in Marble Rock, is 77.5°F (25.3°C), while the low-temperature averages to 59.9°F (15.5°C).

What is the average humidity in August in Marble Rock?

In Marble Rock, Iowa, the average relative humidity in August is 82%.

How many days does it rain in August in Marble Rock?

In Marble Rock, during August, the rain falls for 12.6 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When it does not snow in Marble Rock?

June through September are months without snowfall in Marble Rock, Iowa.

How many hours of daylight does Marble Rock have in August?

In August, the average day length in Marble Rock, Iowa, is 13h and 53min.

When are sunrise and sunset in August in Marble Rock?

In August, on the first day of the month, sunrise is at 6:03 am and sunset at 8:32 pm. On the last day of the month, in Marble Rock, sunrise is at 6:35 am and sunset at 7:47 pm CDT.

What is the month with the most sunshine in Marble Rock?

The months with the most sunshine in Marble Rock are July and August, with an average of 9.7h of sunshine.

How many hours of sunshine does Marble Rock have in August?

The average sunshine duration in August is 9.7h.

How high is the UV index in August in Marble Rock?

In August, the average daily maximum UV index in Marble Rock is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Marble Rock, IA

Average temperature in August - Marble Rock, IA
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 59.9°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 (10°F).

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Average pressure in August
Marble Rock, IA

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

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in August
Marble Rock, IA

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

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average humidity in August
Marble Rock, IA

Average humidity in August - Marble Rock, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Marble Rock, IA

Average rainfall in August - Marble Rock, IA
  • Average rainfall in August: 2.36"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in August
Marble Rock, IA

Average rainfall days in August - Marble Rock, IA
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3 days).

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Average snowfall in August
Marble Rock, IA

Average snowfall in August - Marble Rock, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Marble Rock, IA

Average snowfall days in August - Marble Rock, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.7 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
Marble Rock, IA

Average daylight in August / Average sunshine in August - Marble Rock, 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 months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in August
Marble Rock, IA

Average sunshine days in August - Marble Rock, IA
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index in August
Marble Rock, IA

Average UV index in August - Marble Rock, 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 December (UV index 1).

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Average cloud cover in August
Marble Rock, IA

Average cloud cover in August - Marble Rock, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in August
Marble Rock, IA

Average visibility in August - Marble Rock, 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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Marble Rock, Iowa, USA

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