August weather forecastAmes, IA
August
Weather in August
August continues the summer narrative in Ames, albeit with a marked trend towards cooler conditions. A slow and steady downtrend in temperature initiates, preparing the city for the impending fall. The maximum temperature averages at 79.9°F (26.6°C) this month. The days enjoy plenty of sunlight, with the city clocking an average of 13.8 daylight hours. A balance between the warmth of the summer sun and the cooling trend sets an enjoyable atmosphere, making outings especially memorable.Temperature
The advent of August in Ames observes an average high-temperature of a still warm 79.9°F (26.6°C), nearly identical to July's 81.3°F (27.4°C). During August, the nighttime temperature averages of 61.9°F (16.6°C).Humidity
In Ames, the average relative humidity in August is 80%.Rainfall
In Ames, in August, during 14.3 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Ames, there are 130.6 rainfall days, and 27.48" (698mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 49min.On the first day of August, sunrise is at 6:08 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:49 pm CDT.
Sunshine
In Ames, the average sunshine in August is 9.6h.UV index
In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Ames, IA
- Average high temperature in August: 79.9°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in August
Ames, 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
Ames, IA
- Average wind speed in August: 7.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in August
Ames, IA
- Average humidity in August: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Ames, IA
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in August
Ames, IA
- Average rainfall days in August: 14.3 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in August
Ames, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Ames, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Ames, 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Ames, IA
- Average sunshine days in August: 14.7 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in August
Ames, 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
Ames, IA
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in August
Ames, IA
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).





