Denver in september: average Weather, Temperature and Climate
Weather in Denver in september 2025
The weather in Denver in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
perfect weather 51.2cm UV index: 6
Weather at 6am
58°F
Clear/Sunny
77% of time
14%
7%
2%
Weather at 12pm
76°F
Clear/Sunny
80% of time
11%
7%
2%
Weather at 6pm
72°F
Clear/Sunny
59% of time
17%
16%
5%
Weather at 3am
59°F
78%
14%
6%
2%
Evolution of daily average temperature and precipitation in Denver in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Denver in september.
The climate of Denver in september is perfect
the weather in Denver in september is relatively dry (with 1.8in of precipitation over 2 days). The weather's not getting better compared to the previous month since in august there is an average of 2.4in of rainfall over 3 days.
The climate quite comfortable in that area the month of september. The thermometer averaged maximum of 77°F. The minimum is 58°F. Thus, the mean temperature average on this month of september in Denver is 68°F. Note that these seasonal averages are in contrast with those observed in Denver in september with a maximum record of 101°F in 2021 and a minimum record of 25°F in 2020. You can plan to have about 5 days with temperatures up to 86°F, or 17 of time.
On average, in Denver, the days of september last 12:26. Sunrise is at 05:42 and sets at 18:08.
With a good weather, september is a good month to go in this city in United States.
Seasonal average climate and temperature of Denver in september
Check below seasonal norms These statistics are generated from the weather statements of the past years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 68°F | ||||
| Highest temperature | 77°F | ||||
| Lowest temperature | 58°F | ||||
| Highest record temperature | 101°F (2021) | ||||
| Lowest record temperature | 25°F (2020) | ||||
| Number of days at +86°F | 5 day(s) (17%) | ||||
| Number of days at +65°F | 27 day(s) (90%) | ||||
| Number of days at -32°F | 0 day(s) (0%) | ||||
| Wind | |||||
| Wind speed | 14km/h | ||||
| Wind temperature | 58°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.8in | ||||
| Number of days with rainfall | 2 day(s) (7%) | ||||
| Record daily rainfall | 1.8in (2020) | ||||
| Snowfall | 51.2cm | ||||
| Other climate data | |||||
| Humidity | 55% | ||||
| Visibility | 9.77km | ||||
| Cloud cover | 15% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 13 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:42 | ||||
| Time of sunset | 18:08 | ||||
| Length of day | 12:26 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last september?
Here is the day by day recorded weather in Denver in september 2024:
68°F to 83°F
65°F to 85°F
68°F to 85°F
70°F to 83°F
61°F to 74°F
61°F to 81°F
65°F to 85°F
67°F to 88°F
67°F to 85°F
67°F to 81°F
67°F to 79°F
65°F to 88°F
63°F to 79°F
63°F to 83°F
65°F to 81°F
65°F to 83°F
59°F to 81°F
54°F to 79°F
54°F to 81°F
59°F to 83°F
59°F to 63°F
43°F to 50°F
47°F to 76°F
58°F to 76°F
58°F to 86°F
59°F to 90°F
67°F to 86°F
59°F to 88°F
61°F to 88°F
59°F to 83°F
Map: other cities in the United States (USA) in september
Cities near Denver:
| Arches National Park (Utah) in september | perfect weather |
| Moab in september | perfect weather |
| Mesa Verde National Park (Colorado) in september | good weather |
| Wyoming in september | good weather |
| Canyonlands National Park (Utah) in september | perfect weather |
| Santa Fe (New Mexico) in september | good weather |
| Mount Rushmore in september | good weather |
| Utah in september | perfect weather |
| Albuquerque in september | perfect weather |
| Monument Valley in september | perfect weather |
| Kansas in september | good weather |
| Amarillo (Texas) in september | perfect weather |
Click over cities on the map for information about the weather in september.
Denver
perfect weather
good
tolerable
bad
very bad
Weather data for Denver in september:
Weather data for Denver for september are derived from an average of the weather forecast since 2009 in Denver. There is a margin of error and these forecasts are to be considered as general information only. The weather in Denver can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Denver.