September weather forecastCentral, UT
September
Weather in September
September signifies the advent of fall in Central, with a considerable drop in temperature compared to August, lowering to a modest 85.1°F (29.5°C). The moderate temperature, combined with a dip in rainfall, generates an inviting climate. The daylight hours start shrinking, indicating a shift in the seasons and the gradual arrival of shorter days. Despite the reduced heat, September weather remains comfortable for outdoor activities. As the month concludes, October reveals a further temperature decrease, reinforcing the arrival of Autumn.Temperature
September in Central brings a slight decrease in the average high-temperature, shifting from a hot 92.3°F (33.5°C) in August to a moderately hot 85.1°F (29.5°C). Central witnesses a consistent average low-temperature of 64.6°F (18.1°C) throughout September.Humidity
The average relative humidity in September in Central is 29%.Rainfall
In Central, in September, during 4.9 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, there are 66.6 rainfall days, and 6.97" (177mm) of precipitation is accumulated.Snowfall
March through October are months without snowfall in Central.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 7:05 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:18 pm MDT.
Sunshine
In September, the average sunshine is 9.9h.UV index
In Central, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Central, UT
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (47.7°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is December (31.6°F).
Average pressure in September
Central, UT
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Central, UT
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are August and December (5.3mph).
Average humidity in September
Central, UT
- Average humidity in September: 29%
The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).
Average rainfall in September
Central, UT
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Central, UT
- Average rainfall days in September: 4.9 days
The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (1.8 days).
Average snowfall in September
Central, UT
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Central, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Central, 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: 9h and 54min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Central, UT
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is June (26.3 days).
The month with the least sunshine days is July (17.9 days).
Average UV index in September
Central, UT
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Central, UT
- Average cloud cover in September: 8
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Central, 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).





