September weather forecastBlanding, UT
September
Weather in September
September marks the beginning of fall in Blanding, Utah, as temperatures taper off to an average high of 77.4°F (25.2°C). It brings in a striking combination of warm, comfortable days and cooler nights. The increased rainfall only adds to the scenic beauty as leaves transform from shades of green to fiery oranges and reds. As days begin to shorten, the weather creates a unique, captivating blend of summer warmth and whispers of the approaching autumn chill.Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from 84.7°F (29.3°C) in August to a still moderately hot 77.4°F (25.2°C). During the nights in September, Blanding experiences a consistent average temperature of 58.1°F (14.5°C).Humidity
In September, the average relative humidity is 35%.Rainfall
In Blanding, during September, the rain falls for 8.2 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Blanding, during the entire year, the rain falls for 73.8 days and collects up to 7.72" (196mm) of precipitation.Snowfall
May through September are months without snowfall in Blanding.Daylight
In Blanding, Utah, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:01 pm MDT.
Sunshine
The average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Blanding, UT
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Blanding, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Blanding, UT
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in September
Blanding, UT
- Average humidity in September: 35%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (22%).
Average rainfall in September
Blanding, UT
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is August (1.1").
The driest month (with the least rainfall) is June (0.31").
Average rainfall days in September
Blanding, UT
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Blanding, UT
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Blanding, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (6.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Blanding, UT
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).
Average sunshine days in September
Blanding, UT
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Blanding, UT
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Blanding, UT
- Average cloud cover in September: 11
The months with the most cloud cover are January and December (Cloud cover 26).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in September
Blanding, UT
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





