Weather on September 9
Denver, CO
55 Years of Data
Avg High
82°F
Avg Low
50°F
Warmest
2022
77°F avg
Coldest
2020
35°F avg
About This Date
September 9th in Denver, CO typically brings warm fall weather, with average highs around 82°F and lows near 50°F — a 32°F daily swing. Over 55 years of records, the warmest September 9th was in 2022 (77°F average), while the coldest was 2020 (35°F) — a 42°F range across recorded history. Precipitation has occurred on 20% of recorded September 9th dates, with snow falling 2% of the time. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 9th in Denver, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 53° | 72° | — | — |
| 2024 | 94° | 53° | 73° | — | — |
| 2023 | 93° | 50° | 72° | — | — |
| 2022warmest | 102° | 51° | 77° | — | — |
| 2021 | 89° | 51° | 70° | — | — |
| 2020coldest | 37° | 32° | 35° | 0.74" | 0.6" |
| 2019 | 79° | 56° | 67° | 0.43" | — |
| 2018 | 87° | 53° | 70° | — | — |
| 2017 | 86° | 55° | 71° | — | — |
| 2016 | 90° | 56° | 73° | — | — |
| 2015 | 83° | 47° | 65° | — | — |
| 2014 | 87° | 59° | 73° | 0.05" | — |
| 2013 | 91° | 58° | 74° | — | — |
| 2012 | 79° | 44° | 61° | — | — |
| 2011 | 75° | 48° | 62° | — | — |
| 2010 | 83° | 50° | 66° | 0.03" | — |
| 2009 | 92° | 58° | 75° | — | — |
| 2008 | 54° | 40° | 47° | — | — |
| 2007 | 89° | 45° | 67° | — | — |
| 2006 | 63° | 48° | 55° | 0.3" | — |
| 2005 | 96° | 55° | 76° | — | — |
| 2004 | 89° | 52° | 70° | — | — |
| 2003 | 86° | 48° | 67° | — | — |
| 2002 | 72° | 56° | 64° | 0.89" | — |
| 2001 | 74° | 38° | 56° | — | — |
| 2000 | 86° | 56° | 71° | — | — |
| 1999 | 84° | 45° | 64° | — | — |
| 1998 | 93° | 57° | 75° | — | — |
| 1997 | 78° | 52° | 65° | — | — |
| 1996 | 87° | 61° | 74° | — | — |
| 1995 | 71° | 46° | 59° | — | — |
| 1994 | 88° | 56° | 72° | — | — |
| 1993 | 78° | 50° | 64° | — | — |
| 1992 | 70° | 49° | 59° | — | — |
| 1991 | 80° | 49° | 64° | — | — |
| 1990 | 88° | 56° | 72° | — | — |
| 1989 | 51° | 42° | 47° | 0.56" | — |
| 1988 | 92° | 43° | 67° | — | — |
| 1987 | 75° | 51° | 63° | — | — |
| 1986 | 79° | 54° | 66° | — | — |
| 1985 | 77° | 49° | 63° | — | — |
| 1984 | 88° | 47° | 67° | — | — |
| 1983 | 91° | 55° | 73° | — | — |
| 1982 | 86° | 51° | 69° | — | — |
| 1981 | 85° | 50° | 67° | — | — |
| 1980 | 69° | 47° | 58° | 1.02" | — |
| 1979 | 96° | 56° | 76° | — | — |
| 1978 | 88° | 52° | 70° | — | — |
| 1977 | 88° | 43° | 65° | — | — |
| 1976 | 73° | 40° | 56° | 0.03" | — |
| 1975 | 87° | 53° | 70° | — | — |
| 1974 | 90° | 53° | 71° | — | — |
| 1973 | 77° | 55° | 66° | 0.66" | — |
| 1972 | 79° | 55° | 67° | 0.05" | — |
| 1971 | 85° | 47° | 66° | — | — |
55 years of data from NORTHGLENN