August weather forecast
Marne, IA

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Weather in August

August, the last month of the summer in Marne, is another warm month, with an average temperature ranging between min 62.2°F (16.8°C) and max 81.1°F (27.3°C).

Temperature

Transitioning into August, Marne records an average high-temperature of a still moderately hot 81.1°F (27.3°C), almost identical to July's 82.6°F (28.1°C). The average temperature during August nights is registered at a refreshing 62.2°F (16.8°C).

Heat index

The heat index for August is evaluated at a tropical 86°F (30°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In Marne, the average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 12.8 days. Throughout August, 2.48" (63mm) of precipitation is accumulated. In Marne, during the entire year, the rain falls for 118.7 days and collects up to 20.79" (528mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day in Marne, Iowa, is 13h and 47min.
On the first day of August, sunrise is at 6:16 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:54 pm CDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the usual temperature for Marne in August?

An average high-temperature, in August, in Marne, is 81.1°F (27.3°C) and the average low-temperature is 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 86°F (30°C).

What is the average humidity in August in Marne?

In August, the average relative humidity in Marne, Iowa, is 79%.

How much does it rain in Marne in August?

In August, in Marne, Iowa, the rain falls for 12.8 days. Throughout August, 2.48" (63mm) of precipitation is accumulated.

When it does not snow in Marne?

June through September are months without snowfall in Marne.

How many hours of daylight does Marne have in August?

The average day length in August in Marne is 13h and 47min.

When are sunrise and sunset in August in Marne?

On the first day of August in Marne, sunrise is at 6:16 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:54 pm CDT.

How long on average sun shines in August in Marne?

In Marne, the average sunshine duration in August is 9.8h.

When is the highest UV index in Marne?

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

What is the UV index reading in August in Marne?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Marne, IA

Average temperature in August - Marne, IA
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in August
Marne, IA

Average pressure in August - Marne, 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 (29.87"Hg).

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Average wind speed in August
Marne, IA

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

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in August
Marne, IA

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

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in August
Marne, IA

Average rainfall in August - Marne, IA
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in August
Marne, IA

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

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).

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Average snowfall in August
Marne, IA

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

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Marne, IA

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

The month with the highest number of snowfall days is January (8.7 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
Marne, IA

Average daylight in August / Average sunshine in August - Marne, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in August
Marne, IA

Average sunshine days in August - Marne, IA
  • Average sunshine days in August: 14.9 days

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in August
Marne, IA

Average UV index in August - Marne, 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, February, October, November and December (UV index 2).

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Average cloud cover in August
Marne, IA

Average cloud cover in August - Marne, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in August
Marne, IA

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

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

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Marne, Iowa, USA

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