August weather forecastAnkeny, IA
August
Weather in August
August carries the summer charm forward even with a slight drop in temperatures compared to July in Ankeny, Iowa. Blazing sunlight rules the sky, proffering vivid sunrises and breathtaking sunsets. The rainfall occurs moderately, maintaining a balance in the weather cycle. Towards the end of August, a slight indicator of the forthcoming fall floats in the air as daylight begins to retract. The wind gains speed compared to July, setting the stage for the impending change of season.Temperature
With August's advent, Ankeny sees an average high-temperature of a still moderately hot 81.1°F (27.3°C), subtly shifted from July's 82.2°F (27.9°C). During the month of August, Ankeny experiences a steady low-temperature average of 62.2°F (16.8°C).Heat index
The heat index value during August is estimated at a hot 86°F (30°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In Ankeny, the average relative humidity in August is 79%.Rainfall
In Ankeny, during August, the rain falls for 13.1 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Ankeny, during the entire year, the rain falls for 129.8 days and collects up to 25.91" (658mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Ankeny, the average length of the day in August is 13h and 48min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:32 pm. On the last day of August, sunrise is at 6:40 am and sunset at 7:48 pm CDT.
Sunshine
In August, the average sunshine is 9.9h.UV index
The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in August transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Ankeny, IA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (27.7°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
Ankeny, 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 (29.88"Hg).
Average wind speed in August
Ankeny, 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
Ankeny, 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
Ankeny, IA
- Average rainfall in August: 2.48"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in August
Ankeny, IA
- Average rainfall days in August: 13.1 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in August
Ankeny, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Ankeny, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Ankeny, IA
- Average daylight in August: 13h and 48min
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 54min
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
Ankeny, IA
- Average sunshine days in August: 15.9 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (11 days).
Average UV index in August
Ankeny, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in August
Ankeny, IA
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in August
Ankeny, IA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
