September weather forecastSunset, UT
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Sunset, Utah, with an average temperature ranging between max 72.5°F (22.5°C) and min 52.7°F (11.5°C).Temperature
September's onset introduces a mild reduction in the average high-temperature, from a moderately hot 81.1°F (27.3°C) in August to a pleasant 72.5°F (22.5°C). In Sunset, September is marked by an average low-temperature of 52.7°F (11.5°C).Humidity
In Sunset, the average relative humidity in September is 44%.Rainfall
In Sunset, during September, the rain falls for 7.3 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Sunset, during the entire year, the rain falls for 98.9 days and collects up to 13.58" (345mm) of precipitation.Snowfall
Months with snowfall in Sunset are January through May, September through December. September is the first month it typically snows in Sunset. Throughout September, in the average 0.1 snowfall days, it receives 0.31" (8mm) of snow. In Sunset, during the entire year, snow falls for 54.4 days and aggregates up to 44.84" (1139mm) of snow.Daylight
In Sunset, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:55 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:11 pm MDT.
Sunshine
The average sunshine in September in Sunset is 9.9h.UV index
In Sunset, Utah, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sunset, UT
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Sunset, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Sunset, UT
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in September
Sunset, UT
- Average humidity in September: 44%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (38%).
Average rainfall in September
Sunset, UT
- Average rainfall in September: 0.91"
The wettest months (with the highest rainfall) are January and February (1.61").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in September
Sunset, UT
- Average rainfall days in September: 7.3 days
The month with the highest number of rainy days is April (12.3 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Sunset, UT
- Average snowfall in September: 0.31"
The month with the highest snowfall is January (11.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Sunset, UT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sunset, UT
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Sunset, UT
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in September
Sunset, UT
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sunset, UT
- Average cloud cover in September: 13
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Sunset, UT
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
