August weather forecastDayton, IA
August
Weather in August
The last month of the summer, August, is another warm month in Dayton, Iowa, with an average temperature fluctuating between 61.3°F (16.3°C) and 80.2°F (26.8°C).Temperature
The arrival of August denotes a barely perceptible change in the average high-temperatures to a still warm 80.2°F (26.8°C) from July's 81.5°F (27.5°C). In the month of August, the nighttime temperature dips to a steady average of 61.3°F (16.3°C).Humidity
In Dayton, the average relative humidity in August is 80%.Rainfall
In Dayton, during August, the rain falls for 13.3 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 126.1 rainfall days, and 26.85" (682mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 50min.On the first day of August, sunrise is at 6:09 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:51 pm CDT.
Sunshine
The average sunshine in August is 9.6h.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 5 in August translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Dayton, IA
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in August: 61.3°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 (13.5°F).
Average pressure in August
Dayton, 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
Dayton, IA
- Average wind speed in August: 7.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in August
Dayton, 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 (69%).
Average rainfall in August
Dayton, IA
- Average rainfall in August: 2.44"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in August
Dayton, IA
- Average rainfall days in August: 13.3 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in August
Dayton, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Dayton, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Dayton, 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 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Dayton, IA
- Average sunshine days in August: 16.1 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in August
Dayton, 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
Dayton, IA
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in August
Dayton, 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).
