August weather forecastAmerican Falls, ID
August
Weather in August
August retains the high heat in American Falls, but a slight dip marks the beginning of the transition toward the fall season. The relative humidity remains constant with no marked rise or fall from July. The month holds onto the stretched daylight hours and elevated UV index. Wind speed sees a marginal decrease, while barometric pressure sees little variation. As August winds down, this Idaho town prepares to transition into more temperate weather.Temperature
American Falls's weather, upon August's arrival, documents an average high-temperature of a still warm 84.4°F (29.1°C), nearly identical to the prior month. American Falls documents a striking divergence from daytime highs, with an average nighttime temperature of 58.5°F (14.7°C) in August.Humidity
The least humid month is August, with an average relative humidity of 32%.Rainfall
In American Falls, Idaho, in August, it is raining for 8.3 days, with typically 0.63" (16mm) of accumulated precipitation. In American Falls, during the entire year, the rain falls for 108.7 days and collects up to 10.47" (266mm) of precipitation.Snowfall
In American Falls, Idaho, snow does not fall in June through August.Daylight
In August, the average length of the day is 13h and 52min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:51 pm. On the last day of August, in American Falls, sunrise is at 6:55 am and sunset at 8:07 pm MDT.
Sunshine
In American Falls, Idaho, the average sunshine in August is 11.8h.UV index
In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 5 during August leads to these advisories:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
American Falls, ID
- Average high temperature in August: 84.4°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in August: 58.5°F
The month with the highest average low temperature is August (58.5°F).
The coldest months (with the lowest average low temperature) are January and December (18°F).
Average pressure in August
American Falls, ID
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
American Falls, ID
- Average wind speed in August: 7.3mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are January and December (7mph).
Average humidity in August
American Falls, ID
- Average humidity in August: 32%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (32%).
Average rainfall in August
American Falls, ID
- Average rainfall in August: 0.63"
The wettest month (with the highest rainfall) is March (1.18").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in August
American Falls, ID
- Average rainfall days in August: 8.3 days
The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in August
American Falls, ID
- Average snowfall in August: 0"
The month with the highest snowfall is January (7.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
American Falls, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (13.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
American Falls, ID
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 11h and 48min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in August
American Falls, ID
- Average sunshine days in August: 17.3 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is February (12.4 days).
Average UV index in August
American Falls, ID
- 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 December (UV index 1).
Average cloud cover in August
American Falls, ID
- Average cloud cover in August: 11
The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in August
American Falls, ID
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
