Weather on October 18
Denver, CO
55 Years of Data
Avg High
67°F
Avg Low
36°F
Warmest
2003
63°F avg
Coldest
2006
33°F avg
About This Date
October 18th in Denver, CO typically brings mild fall weather, with average highs around 67°F and lows near 36°F — a 31°F daily swing. Over 54 years of records, the warmest October 18th was in 2003 (63°F average), while the coldest was 2006 (33°F) — a 30°F range across recorded history. Precipitation has occurred on 7% of recorded October 18th dates, with snow falling 4% of the time (heaviest snowfall: 3.5"). The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Denver, CO? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 38° | 51° | — | — |
| 2024 | 74° | 43° | 58° | — | — |
| 2023 | 83° | 42° | 62° | — | — |
| 2021 | 77° | 43° | 60° | — | — |
| 2020 | 71° | 39° | 55° | — | — |
| 2019 | 79° | 41° | 60° | — | — |
| 2018 | 61° | 31° | 46° | — | — |
| 2017 | 79° | 38° | 58° | — | — |
| 2016 | 79° | 39° | 59° | — | — |
| 2015 | 81° | 40° | 60° | — | — |
| 2014 | 62° | 37° | 50° | — | — |
| 2013 | 49° | 32° | 40° | 0.03" | 0.2" |
| 2012 | 57° | 32° | 45° | — | — |
| 2011 | 54° | 32° | 43° | — | — |
| 2010 | 77° | 36° | 56° | — | — |
| 2009 | 70° | 29° | 49° | — | — |
| 2008 | 73° | 37° | 55° | — | — |
| 2007 | 61° | 41° | 51° | — | — |
| 2006coldest | 42° | 24° | 33° | 1.09" | 3.5" |
| 2005 | 78° | 46° | 62° | — | — |
| 2004 | 75° | 39° | 57° | — | — |
| 2003warmest | 81° | 45° | 63° | — | — |
| 2002 | 72° | 28° | 50° | — | — |
| 2001 | 78° | 37° | 58° | — | — |
| 2000 | 70° | 37° | 53° | — | — |
| 1999 | 53° | 21° | 37° | — | — |
| 1998 | 64° | 27° | 45° | — | — |
| 1997 | 75° | 43° | 59° | — | — |
| 1996 | 73° | 26° | 50° | — | — |
| 1995 | 80° | 44° | 62° | — | — |
| 1994 | 62° | 37° | 50° | — | — |
| 1993 | 47° | 41° | 44° | 0.91" | — |
| 1992 | 73° | 29° | 51° | — | — |
| 1991 | 56° | 33° | 44° | — | — |
| 1990 | 67° | 29° | 48° | — | — |
| 1989 | 45° | 28° | 36° | — | — |
| 1988 | 74° | 42° | 58° | — | — |
| 1987 | 56° | 32° | 44° | — | — |
| 1986 | 70° | 36° | 53° | — | — |
| 1985 | 60° | 37° | 49° | — | — |
| 1984 | 43° | 28° | 35° | — | — |
| 1983 | 65° | 44° | 54° | — | — |
| 1982 | 72° | 38° | 55° | — | — |
| 1981 | 62° | 34° | 48° | — | — |
| 1980 | 60° | 34° | 47° | — | — |
| 1979 | 69° | 47° | 58° | — | — |
| 1978 | 56° | 37° | 46° | — | — |
| 1977 | 76° | 35° | 55° | — | — |
| 1976 | 48° | 24° | 36° | — | — |
| 1975 | 79° | 35° | 57° | — | — |
| 1974 | 77° | 41° | 59° | — | — |
| 1973 | 80° | 42° | 61° | — | — |
| 1972 | 55° | 39° | 47° | — | — |
| 1971 | 57° | 31° | 44° | 0.03" | — |
54 years of data from DENVER-STAPLETON