August weather forecastAmerican Fork, UT
August
Weather in August
The weather in August in American Fork shows a gradual cooling trend from July's peak summer conditions. The temperature witnesses a slight dip but the month continues to retain the summer character. The city basks in plentiful sunshine under mostly clear skies, encouraging outdoor activities. Despite a higher rate of rainfall, humidity levels stay rather low. The wind also tends to pick up a bit, offering a gentle respite from the heat.Temperature
As July turns into August, the average high-temperatures rest at a still warm 82.9°F (28.3°C), showing a minor variation from the prior month. American Fork experiences a drastic reduction from day temperatures to an average low of 57°F (13.9°C) in August.Humidity
In August, the average relative humidity is 39%.Rainfall
In American Fork, during August, the rain falls for 9.7 days and regularly aggregates up to 0.94" (24mm) of precipitation. In American Fork, during the entire year, the rain falls for 123.2 days and collects up to 16.73" (425mm) of precipitation.Snowfall
In American Fork, snow does not fall in June through September.Daylight
In American Fork, Utah, the average length of the day in August is 13h and 43min.On the first day of the month, sunrise is at 6:25 am and sunset at 8:41 pm. On the last day of August, sunrise is at 6:54 am and sunset at 8:00 pm MDT.
Sunshine
August has the most sunshine of the year, with an average of 11.9h of sunshine.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 5 in August leads to these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
American Fork, UT
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The months with the lowest average high temperature are January and December (32.4°F).
- Average low temperature in August: 57°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in August
American Fork, UT
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in August
American Fork, UT
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in August
American Fork, UT
- Average humidity in August: 39%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is July (38%).
Average rainfall in August
American Fork, UT
- Average rainfall in August: 0.94"
The wettest months (with the highest rainfall) are April and December (1.93").
The driest month (with the least rainfall) is June (0.75").
Average rainfall days in August
American Fork, UT
- Average rainfall days in August: 9.7 days
The month with the highest number of rainy days is May (14.3 days).
The months with the least rainy days are June and November (7.3 days).
Average snowfall in August
American Fork, UT
- Average snowfall in August: 0"
The month with the highest snowfall is January (11.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
American Fork, UT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
American Fork, UT
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in August
American Fork, UT
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in August
American Fork, UT
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
American Fork, UT
- Average cloud cover in August: 10
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in August
American Fork, UT
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





