Weather on September 25
Denver, CO
55 Years of Data
Avg High
76°F
Avg Low
43°F
Warmest
2020
71°F avg
Coldest
1984
42°F avg
About This Date
September 25th in Denver, CO typically brings pleasant fall weather, with average highs around 76°F and lows near 43°F — a 33°F daily swing. Over 55 years of records, the warmest September 25th was in 2020 (71°F average), while the coldest was 1984 (42°F) — a 29°F range across recorded history. Precipitation has occurred on 22% of recorded September 25th 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 25th in Denver, CO? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 40° | 56° | 0.03" | — |
| 2024 | 80° | 47° | 63° | — | — |
| 2023 | 81° | 42° | 61° | — | — |
| 2022 | 86° | 43° | 64° | — | — |
| 2021 | 75° | 44° | 60° | — | — |
| 2020warmest | 88° | 55° | 71° | — | — |
| 2019 | 82° | 48° | 65° | — | — |
| 2018 | 77° | 42° | 60° | — | — |
| 2017 | 55° | 45° | 50° | 0.41" | — |
| 2016 | 73° | 44° | 59° | — | — |
| 2015 | 85° | 47° | 66° | — | — |
| 2014 | 83° | 51° | 67° | — | — |
| 2013 | 78° | 43° | 60° | — | — |
| 2012 | 81° | 49° | 65° | — | — |
| 2011 | 88° | 52° | 70° | — | — |
| 2010 | 83° | 45° | 64° | — | — |
| 2009 | 68° | 45° | 56° | 0.51" | — |
| 2008 | 83° | 47° | 65° | — | — |
| 2007 | 55° | 43° | 49° | 1.12" | — |
| 2006 | 68° | 37° | 53° | — | — |
| 2005 | 88° | 48° | 68° | — | — |
| 2004 | 73° | 41° | 57° | — | — |
| 2003 | 73° | 39° | 56° | — | — |
| 2002 | 64° | 43° | 53° | 0.2" | — |
| 2001 | 90° | 45° | 67° | — | — |
| 2000 | 67° | 31° | 49° | — | — |
| 1999 | 86° | 53° | 70° | — | — |
| 1998 | 89° | 47° | 68° | — | — |
| 1997 | 81° | 45° | 63° | — | — |
| 1996 | 66° | 32° | 49° | 0.56" | 0.1" |
| 1995 | 50° | 35° | 43° | — | — |
| 1994 | 76° | 41° | 58° | — | — |
| 1993 | 76° | 45° | 60° | — | — |
| 1992 | 74° | 52° | 63° | — | — |
| 1991 | 76° | 42° | 59° | — | — |
| 1990 | 84° | 54° | 69° | 0.13" | — |
| 1989 | 78° | 46° | 62° | — | — |
| 1988 | 80° | 40° | 60° | — | — |
| 1987 | 83° | 43° | 63° | — | — |
| 1986 | 71° | 35° | 53° | — | — |
| 1985 | 57° | 32° | 45° | 0.03" | — |
| 1984coldest | 53° | 30° | 42° | 0.03" | — |
| 1983 | 80° | 45° | 62° | — | — |
| 1982 | 67° | 48° | 57° | — | — |
| 1981 | 85° | 47° | 66° | 0.46" | — |
| 1980 | 70° | 43° | 56° | — | — |
| 1979 | 84° | 44° | 64° | — | — |
| 1978 | 78° | 49° | 63° | — | — |
| 1977 | 85° | 42° | 63° | — | — |
| 1976 | 63° | 49° | 56° | 0.91" | — |
| 1975 | 80° | 33° | 57° | — | — |
| 1974 | 82° | 37° | 60° | — | — |
| 1973 | 69° | 42° | 56° | 0.13" | — |
| 1972 | 56° | 38° | 47° | — | — |
| 1971 | 79° | 41° | 60° | — | — |
55 years of data from NORTHGLENN