August weather forecast
Mystic, IA

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Weather in August

August, the last month of the summer in Mystic, is another warm month, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 63.5°F (17.5°C).

Temperature

August's arrival registers an average high-temperature of a still warm 82°F (27.8°C), closely aligning with the temperature of the previous month. Mystic, in the month of August, anticipates a consistent average low-temperature of 63.5°F (17.5°C).

Heat index

In August, the average heat index is computed to be a hot 87.8°F (31°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

The average relative humidity in August is 78%.

Rainfall

In August, in Mystic, the rain falls for 14.8 days. Throughout August, 2.76" (70mm) of precipitation is accumulated. Throughout the year, in Mystic, there are 143.2 rainfall days, and 27.48" (698mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Mystic.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:27 pm. On the last day of August, in Mystic, sunrise is at 6:38 am and sunset at 7:45 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

In Mystic, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. 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 average August temperature in Mystic?

In Mystic, 82°F (27.8°C) is the average high-temperature and 63.5°F (17.5°C) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is computed to be 87.8°F (31°C).

What is the average humidity in August in Mystic?

The average relative humidity in August is 78%.

How many days does it rain in August in Mystic?

In Mystic, Iowa, during August, the rain falls for 14.8 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow in Mystic?

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

How many hours of daylight does Mystic have in August?

The average day length in August is 13h and 45min.

When are sunrise and sunset in August in Mystic?

In August, on the first day of the month, sunrise is at 6:09 am and sunset at 8:27 pm. On the last day of the month, in Mystic, sunrise is at 6:38 am and sunset at 7:45 pm CDT.

How many hours of sunshine does Mystic have in August?

In Mystic, the average sunshine duration in August is 9.9h.

How high is the UV index in August in Mystic?

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Mystic, IA

Average temperature in August - Mystic, IA
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in August
Mystic, IA

Average pressure in August - Mystic, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Mystic, IA

Average wind speed in August - Mystic, IA
  • Average wind speed in August: 7mph

The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in August
Mystic, IA

Average humidity in August - Mystic, IA
  • Average humidity in August: 78%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Mystic, IA

Average rainfall in August - Mystic, IA
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").

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Average rainfall days in August
Mystic, IA

Average rainfall days in August - Mystic, IA
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).

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Average snowfall in August
Mystic, IA

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

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Mystic, IA

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

The month with the highest number of snowfall days is January (9.4 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
Mystic, IA

Average daylight in August / Average sunshine in August - Mystic, IA
  • Average daylight in August: 13h and 4min

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 18min).

  • 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 18min).

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Average sunshine days in August
Mystic, IA

Average sunshine days in August - Mystic, IA
  • Average sunshine days in August: 12.9 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).

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Average UV index in August
Mystic, IA

Average UV index in August - Mystic, 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 January (UV index 1).

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Average cloud cover in August
Mystic, IA

Average cloud cover in August - Mystic, IA
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

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Average visibility in August
Mystic, IA

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

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