August weather forecast
Promise City, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Promise City, Iowa, with an average temperature fluctuating between 63.7°F (17.6°C) and 82°F (27.8°C).

Temperature

Promise City's weather in August, with an average high-temperature of a still moderately hot 82°F (27.8°C), subtly shifts from July's 83.3°F (28.5°C). Promise City observes an average low-temperature of 63.7°F (17.6°C) during August nights.

Heat index

For August, the heat index is appraised at a tropical 87.8°F (31°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

The average relative humidity in August is 78%.

Rainfall

In Promise City, during August, the rain falls for 13.5 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Promise City, during the entire year, the rain falls for 125.7 days and collects up to 20.39" (518mm) of precipitation.

Snowfall

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

Daylight

In Promise City, the average length of the day in August is 13h and 44min.
On the first day of August in Promise City, sunrise is at 6:09 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:45 pm CDT.

Sunshine

In Promise City, Iowa, the average sunshine in August is 10h.

UV index

The months with the highest UV index in Promise City are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 6 in August translates into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What are the temperatures in Promise City in August?

The high-temperature during August is 82°F (27.8°C) and the low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in August in Promise City?

The average relative humidity in August in Promise City, Iowa, is 78%.

How much does it rain in Promise City in August?

In Promise City, Iowa, in August, it is raining for 13.5 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow in Promise City?

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

What is the average length of the day in August in Promise City?

In August, the average day length in Promise City, Iowa, is 13h and 44min.

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

On the first day of August, sunrise is at 6:09 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:45 pm CDT.

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

The average sunshine duration in August is 10h.

What are the months with the highest UV index in Promise City?

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

What is the UV index intensity in August in Promise City?

In Promise City, Iowa, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents 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
Promise City, IA

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

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in August: 63.7°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
Promise City, IA

Average pressure in August - Promise City, 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 (29.89"Hg).

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Average wind speed in August
Promise City, IA

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

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

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

Average rainfall in August - Promise City, IA
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is June (3.31").
The driest months (with the least rainfall) are January and December (0.71").

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Average rainfall days in August
Promise City, IA

Average rainfall days in August - Promise City, IA
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in August
Promise City, IA

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

The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Promise City, IA

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

The month with the highest number of snowfall days is January (8.6 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
Promise City, IA

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 0min

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
Promise City, IA

Average sunshine days in August - Promise City, IA
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index in August
Promise City, IA

Average UV index in August - Promise City, IA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in August
Promise City, IA

Average cloud cover in August - Promise City, IA
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July, August and September (Cloud cover 29).

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Average visibility in August
Promise City, IA

Average visibility in August - Promise City, 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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Promise City, Iowa, USA

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