September weather forecastCisco, UT
September
Weather in September
The first month of the autumn, September, is still a warm month in Cisco, Utah, with an average temperature fluctuating between 73.6°F (23.1°C) and 52.9°F (11.6°C).Temperature
September ushers in a minor alteration in Cisco's climate, with the average high-temperature moving from August's 80.1°F (26.7°C) to a still warm 73.6°F (23.1°C). In September, the nighttime temperature in Cisco, Utah, lowers to an average of 52.9°F (11.6°C).Humidity
In September, the average relative humidity in Cisco is 41%.Rainfall
In Cisco, in September, it is raining for 12.5 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in Cisco, there are 117.7 rainfall days, and 15.83" (402mm) of precipitation is accumulated.Snowfall
In Cisco, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of September in Cisco, sunrise is at 6:46 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:00 pm MDT.
Sunshine
In Cisco, Utah, the average sunshine in September is 10.9h.UV index
In September, the average daily maximum UV index in Cisco is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cisco, UT
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in September
Cisco, UT
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Cisco, UT
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are April and June (8mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in September
Cisco, UT
- Average humidity in September: 41%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is June (29%).
Average rainfall in September
Cisco, UT
- Average rainfall in September: 1.73"
The wettest months (with the highest rainfall) are July and August (3.15").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days in September
Cisco, UT
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Cisco, UT
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Cisco, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 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
Cisco, UT
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Cisco, UT
- Average sunshine days in September: 13.7 days
The months with the most sunshine days are January and November (23 days).
The month with the least sunshine days is July (8 days).
Average UV index in September
Cisco, UT
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Cisco, UT
- Average cloud cover in September: 12
The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility in September
Cisco, 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).





