September weather forecastDurango, CO

September
Weather in September
September brings about a noticeable change in Durango's weather. With the peak temperature lowering to 67.5°F (19.7°C), the shift from summer to fall starts to show. The initial hints of fall colors start to flash in the city's picturesque landscapes. The reduction in daylight hours further underscores this change. A unique blend of lingering summer warmth and emerging autumn coolness makes September a particularly splendid month in Durango.Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 73.9°F (23.3°C) to a comfortable 67.5°F (19.7°C). Durango sees a large disparity in day to night temperatures in September, with the night temperature dropping to an average of 45.1°F (7.3°C).Humidity
In September, the average relative humidity is 53%.Rainfall
In Durango, in September, it is raining for 14.4 days, with typically 2.01" (51mm) of accumulated precipitation. In Durango, during the entire year, the rain falls for 113.4 days and collects up to 20.63" (524mm) of precipitation.Snowfall
In Durango, snow does not fall in June through September.Daylight
In September, the average length of the day in Durango is 12h and 25min.On the first day of September in Durango, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm MDT.
Sunshine
In Durango, the average sunshine in September is 10.9h.UV index
In Durango, Colorado, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Durango, CO
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 45.1°F
The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in September
Durango, CO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.91"Hg).
Average wind speed in September
Durango, CO
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is December (4.9mph).
Average humidity in September
Durango, CO
- Average humidity in September: 53%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (37%).
Average rainfall in September
Durango, CO
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is June (0.94").
Average rainfall days in September
Durango, CO
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in September
Durango, CO
- Average snowfall in September: 0"
The month with the highest snowfall is February (14.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Durango, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Durango, CO
- 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 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
Durango, CO
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Durango, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Durango, CO
- Average cloud cover in September: 15
The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
Durango, CO
- 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).





