Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Polk City sees the arrival of August with an average high-temperature of a still moderately hot 81.3°F (27.4°C), indicating a subtle variation from July. During the nights in August, Polk City observes an average low-temperature of 62.2°F (16.8°C).Heat index
August's average heat index is appraised at a hot 87.8°F (31°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In Polk City, the average relative humidity in August is 79%.Rainfall
In Polk City, Iowa, during August, the rain falls for 12.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Polk City, during the entire year, the rain falls for 114.6 days and collects up to 15.51" (394mm) of precipitation.Snowfall
June through September are months without snowfall in Polk City, Iowa.Daylight
The average length of the day in August is 13h and 49min.On the first day of August, sunrise is at 6:09 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:49 pm CDT.
Sunshine
The average sunshine in August in Polk City is 9.9h.UV index
The average daily maximum UV index in August in Polk City, Iowa, is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 5 during August leads to these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Polk City in August?
What is the average humidity in August in Polk City?
How many days does it rain in August in Polk City?
When it does not snow in Polk City?
What is the average length of the day in August in Polk City?
When is the sunrise / sunset in August in Polk City?
How many hours of sunshine does Polk City have in August?
How high is the UV index in August in Polk City?
Average temperature in August
Polk City, IA
- Average high temperature in August: 81.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (27.9°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 (14.4°F).
Average pressure in August
Polk 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 (29.88"Hg).
Average wind speed in August
Polk City, IA
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in August
Polk City, IA
- Average humidity in August: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Polk City, IA
- Average rainfall in August: 1.81"
The wettest months (with the highest rainfall) are May and June (2.52").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in August
Polk City, IA
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in August
Polk City, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Polk City, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Polk City, IA
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
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 18min).
Average sunshine days in August
Polk City, IA
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is December (22.8 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in August
Polk City, 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).
Average cloud cover in August
Polk City, IA
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in August
Polk City, IA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Polk City, Iowa, USA
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