August weather forecast
Mason City, IA

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Weather in August

The transition of weather from July to August in Mason City includes a drop in temperature and more rainfall. The skies often exhibit cloud formations, obstructing sunlight and slightly dimming the summer vibrancy. The wind speed remains steady, offering a refreshing breather from the summer heat. Rainfall events become more frequent, bringing a soothing rhythm to the warm weather. Despite the rains, August's temperate climate still allows for a multitude of outdoor engagements.

Temperature

The advent of August in Mason City presents an average high-temperature of a still warm 77.4°F (25.2°C), maintaining a close correlation with the preceding month. Mason City experiences a consistent average temperature of 60.3°F (15.7°C) throughout the nights in August.

Humidity

In August, the average relative humidity is 82%.

Rainfall

In Mason City, in August, it is raining for 15.8 days, with typically 2.8" (71mm) of accumulated precipitation. In Mason City, during the entire year, the rain falls for 145.9 days and collects up to 28.82" (732mm) of precipitation.

Snowfall

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

Daylight

In Mason City, the average length of the day in August is 13h and 53min.
On the first day of the month, sunrise is at 6:04 am and sunset at 8:34 pm. On the last day of August, in Mason City, sunrise is at 6:36 am and sunset at 7:48 pm CDT.

Sunshine

In August, the average sunshine is 9.7h.

UV index

In Mason City, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In August, the UV index of 5 transforms into the following advice:
Exercise prevention - Warding off sunburn is urged. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What is the temperature in August in Mason City?

The average high-temperature and low-temperature in Mason City during August are 77.4°F (25.2°C) and 60.3°F (15.7°C) respectively.

What is the average humidity in August in Mason City?

In August, the average relative humidity is 82%.

How many days does it rain in August in Mason City?

In Mason City, in August, it is raining for 15.8 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Mason City?

In Mason City, snow does not fall in June through September.

How many hours of daylight does Mason City have in August?

In Mason City, the average day length in August is 13h and 53min.

What time are sunrise and sunset in August in Mason City?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 8:34 pm. On the last day of the month, in Mason City, sunrise is at 6:36 am and sunset at 7:48 pm CDT.

How long on average sun shines in August in Mason City?

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

What is the UV index reading in August in Mason City?

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 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
Mason City, IA

Average temperature in August - Mason City, IA
  • Average high temperature in August: 77.4°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 (22.3°F).

  • Average low temperature in August: 60.3°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
Mason City, IA

Average pressure in August - Mason City, 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
Mason City, IA

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

The windiest months (with the highest average wind speed) are January and 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
Mason City, IA

Average humidity in August - Mason City, 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
Mason City, IA

Average rainfall in August - Mason City, IA
  • Average rainfall in August: 2.8"

The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in August
Mason City, IA

Average rainfall days in August - Mason City, IA
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in August
Mason City, IA

Average snowfall in August - Mason City, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Mason City, IA

Average snowfall days in August - Mason City, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (14.6 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
Mason City, IA

Average daylight in August / Average sunshine in August - Mason City, 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: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in August
Mason City, IA

Average sunshine days in August - Mason City, IA
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).

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Average UV index in August
Mason City, IA

Average UV index in August - Mason City, IA
  • Average UV index in August: 5

The month with the highest UV index is June (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
Mason City, IA

Average cloud cover in August - Mason City, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in August
Mason City, IA

Average visibility in August - Mason City, IA
  • Average visibility in August: 6mi

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

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Mason City, Iowa, USA

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