Weather in Denver, Colorado, United States in September
In an average September, Denver sees a daily high around 79°F and a low around 50°F, based on 1981–2026 of local climate records.
| Average high | 79°F |
|---|---|
| Typical high range | 66°F to 88°F |
| Average low | 50°F |
| Typical low range | 41°F to 59°F |
| Average daily precipitation | 0.10 in |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
99°F
2019-09-02
Lowest
37°F
1985-09-28
Low
Highest
69°F
2019-09-05
Lowest
18°F
1985-09-29
Feels-like
Highest
98°F
2019-09-05
Lowest
6°F
1985-09-29
Humidity
Highest
12.8 g/m³
1997-09-02
Lowest
2.4 g/m³
2020-09-28
Wind
Highest
31 mph
1986-09-24
Lowest
4 mph
2005-09-25
Precip
Wettest
6.80 in
2013
Driest
0.19 in
2010
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