August weather forecastVinton, IA
August
Weather in August
In August, Vinton observes a slight dip in temperatures compared to July, but remains on the hot side. Generally, this month sees less rainfall and lower humidity levels. August is often sun-kissed with a fair share of clear sky days. As the month progresses, temperatures shift between 61.2°F (16.2°C) to 79°F (26.1°C) indicating a marginal decrease. It remains an ideal month for outdoor events and sports in the city.Temperature
August's onset in Vinton sees an average high-temperature of a still moderately hot 79°F (26.1°C), exhibiting a slight fluctuation from the previous month. In Vinton, August nights cool down to an average of 61.2°F (16.2°C).Humidity
In August, the average relative humidity is 81%.Rainfall
In Vinton, in August, during 10.1 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Vinton, during the entire year, the rain falls for 103.1 days and collects up to 10.63" (270mm) of precipitation.Snowfall
In Vinton, snow does not fall in May through September.Daylight
In Vinton, the average length of the day in August is 13h and 50min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:26 pm. On the last day of August, in Vinton, sunrise is at 6:33 am and sunset at 7:43 pm CDT.
Sunshine
The average sunshine in August in Vinton is 9.8h.UV index
The average daily maximum UV index in August in Vinton, Iowa, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, a regular UV index of 5 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Vinton, IA
- Average high temperature in August: 79°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in August
Vinton, IA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Vinton, IA
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in August
Vinton, IA
- Average humidity in August: 81%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Vinton, IA
- Average rainfall in August: 0.75"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in August
Vinton, IA
- Average rainfall days in August: 10.1 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in August
Vinton, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Vinton, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Vinton, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Vinton, IA
- Average sunshine days in August: 18.2 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (13.4 days).
Average UV index in August
Vinton, IA
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Vinton, IA
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in August
Vinton, 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).





