Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In American Fork, the average high-temperature in September marginally drops from a warm 82.9°F (28.3°C) in August to a still moderately hot 74.1°F (23.4°C). In September, the average low-temperature is 48.9°F (9.4°C).Humidity
In September, the average relative humidity in American Fork is 43%.Rainfall
In American Fork, during September, the rain falls for 9.7 days and regularly aggregates up to 0.98" (25mm) 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
June through September are months without snowfall in American Fork.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:54 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:11 pm MDT.
Sunshine
In September, the average sunshine in American Fork is 10h.UV index
The average daily maximum UV index in September in American Fork is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
FAQ
What is the temperature in September in American Fork?
What is the average humidity in September in American Fork?
How many days does it rain in September in American Fork?
When it does not snow in American Fork?
Does it snow in American Fork in September?
What is the average length of the day in September in American Fork?
What time are sunrise and sunset in September in American Fork?
How many hours of sunshine does American Fork have in September?
What is the UV index reading in September in American Fork?
Average temperature in September
American Fork, UT
- Average high temperature in September: 74.1°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 September: 48.9°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 September
American Fork, UT
- Average pressure in September: 29.95"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 September
American Fork, UT
- Average wind speed in September: 5.6mph
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 September
American Fork, UT
- Average humidity in September: 43%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is July (38%).
Average rainfall in September
American Fork, UT
- Average rainfall in September: 0.98"
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 September
American Fork, UT
- Average rainfall days in September: 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 September
American Fork, UT
- Average snowfall in September: 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 September
American Fork, UT
- Average snowfall days in September: 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 September /
Average sunshine in September
American Fork, UT
- Average daylight in September: 12h and 26min
The month with the longest days is June (Average daylight: 15h and 1min).
The month with the shortest days is December (Average daylight: 9h and 21min).
- Average sunshine in September: 10h and 0min
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 September
American Fork, UT
- Average sunshine days in September: 16.5 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 September
American Fork, UT
- Average UV index in September: 4
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 September
American Fork, UT
- Average cloud cover in September: 12
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 September
American Fork, UT
- Average visibility in September: 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).
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