August weather forecast
Marcus, IA

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Weather in August

August, the last month of the summer in Marcus, is also a moderately hot month, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 80.1°F (26.7°C).

Temperature

August's average high-temperature stands at a still moderately hot 80.1°F (26.7°C), showing little deviation from July's 82°F (27.8°C). Throughout the month of August, Marcus sees a steady low-temperature average of 61°F (16.1°C).

Humidity

In Marcus, Iowa, the average relative humidity in August is 77%.

Rainfall

In Marcus, Iowa, in August, it is raining for 13.3 days, with typically 2.24" (57mm) of accumulated precipitation. In Marcus, during the entire year, the rain falls for 116.2 days and collects up to 22.05" (560mm) of precipitation.

Snowfall

In Marcus, Iowa, snow does not fall in May through September.

Daylight

In August, the average length of the day in Marcus is 13h and 52min.
On the first day of August, sunrise is at 6:15 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:58 pm CDT.

Sunshine

The average sunshine in August is 9.7h.

UV index

In Marcus, Iowa, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during August leads to these instructions:
Exercise prevention - Warding off sunburn is urged. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What is the average August temperature in Marcus?

Marcus in August has an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 61°F (16.1°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in August in Marcus?

The average relative humidity in August in Marcus, Iowa, is 77%.

How much does it rain in Marcus in August?

In Marcus, Iowa, in August, during 13.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Marcus?

May through September are months without snowfall.

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

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

What time are sunrise and sunset in August in Marcus?

In August, on the first day of the month, sunrise is at 6:15 am and sunset at 8:43 pm. On the last day of the month, in Marcus, Iowa, sunrise is at 6:47 am and sunset at 7:58 pm CDT.

How long on average sun shines in August in Marcus?

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

What is the UV index reading in August in Marcus?

In Marcus, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes 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
Marcus, IA

Average temperature in August - Marcus, IA
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in August: 61°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

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Average pressure in August
Marcus, IA

Average pressure in August - Marcus, IA
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in August
Marcus, IA

Average wind speed in August - Marcus, IA
  • Average wind speed in August: 8mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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Average humidity in August
Marcus, IA

Average humidity in August - Marcus, IA
  • Average humidity in August: 77%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in August
Marcus, IA

Average rainfall in August - Marcus, IA
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in August
Marcus, IA

Average rainfall days in August - Marcus, IA
  • Average rainfall days in August: 13.3 days

The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in August
Marcus, IA

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

The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Marcus, IA

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

The month with the highest number of snowfall days is January (9.2 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
Marcus, IA

Average daylight in August / Average sunshine in August - Marcus, 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 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in August
Marcus, IA

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

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.7 days).

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Average UV index in August
Marcus, IA

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

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Average cloud cover in August
Marcus, IA

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

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in August
Marcus, IA

Average visibility in August - Marcus, 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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Marcus, Iowa, USA

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