Weather on October 18
Arvada, CO
55 Years of Data
Avg High
64°F
Avg Low
35°F
Warmest
1973
63°F avg
Coldest
2006
29°F avg
About This Date
October 18th in Arvada, CO typically brings mild fall weather, with average highs around 64°F and lows near 35°F — a 29°F daily swing. Over 55 years of records, the warmest October 18th was in 1973 (63°F average), while the coldest was 2006 (29°F) — a 34°F range across recorded history. Precipitation has occurred on 11% of recorded October 18th dates, with snow falling 2% of the time (heaviest snowfall: 1.5"). The last decade has been 7.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.2°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Arvada, CO? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 41° | 54° | — | — |
| 2024 | 75° | 40° | 57° | — | — |
| 2023 | 84° | 42° | 63° | — | — |
| 2022 | 62° | 36° | 49° | — | — |
| 2021 | 70° | 45° | 57° | — | — |
| 2020 | 74° | 34° | 54° | — | — |
| 2019 | 82° | 43° | 62° | — | — |
| 2018 | 60° | 36° | 48° | — | — |
| 2017 | 76° | 46° | 61° | — | — |
| 2016 | 82° | 31° | 56° | — | — |
| 2015 | 77° | 49° | 63° | — | — |
| 2014 | 64° | 40° | 52° | — | — |
| 2013 | 50° | 34° | 42° | 0.46" | 1.5" |
| 2012 | 61° | 27° | 44° | — | — |
| 2011 | 46° | 26° | 36° | — | — |
| 2010 | 50° | 32° | 41° | — | — |
| 2009 | 70° | 42° | 56° | — | — |
| 2008 | 70° | 41° | 55° | — | — |
| 2007 | 47° | 29° | 38° | — | — |
| 2006coldest | 45° | 14° | 29° | — | — |
| 2005 | 69° | 39° | 54° | — | — |
| 2004 | 57° | 32° | 45° | — | — |
| 2003 | 76° | 48° | 62° | — | — |
| 2002 | 60° | 33° | 47° | — | — |
| 2001 | 78° | 40° | 59° | — | — |
| 2000 | 68° | 42° | 55° | — | — |
| 1999 | 52° | 15° | 33° | — | — |
| 1998 | 46° | 33° | 40° | — | — |
| 1997 | 81° | 37° | 59° | — | — |
| 1996 | 51° | 20° | 35° | — | — |
| 1995 | 74° | 40° | 57° | — | — |
| 1994 | 48° | 30° | 39° | 0.23" | — |
| 1993 | 47° | 33° | 40° | 2.39" | — |
| 1992 | 73° | 32° | 53° | — | — |
| 1991 | 68° | 27° | 47° | — | — |
| 1990 | 56° | 24° | 40° | — | — |
| 1989 | 39° | 25° | 32° | — | — |
| 1988 | 75° | 38° | 56° | — | — |
| 1987 | 70° | 29° | 49° | — | — |
| 1986 | 74° | 37° | 55° | — | — |
| 1985 | 63° | 41° | 52° | — | — |
| 1984 | 43° | 20° | 31° | — | — |
| 1983 | 70° | 43° | 56° | — | — |
| 1982 | 74° | 43° | 58° | — | — |
| 1981 | 57° | 28° | 43° | — | — |
| 1980 | 56° | 26° | 41° | — | — |
| 1979 | 71° | 42° | 57° | — | — |
| 1978 | 55° | 29° | 42° | — | — |
| 1977 | 72° | 44° | 58° | — | — |
| 1976 | 58° | 26° | 42° | 0.08" | — |
| 1975 | 79° | 35° | 57° | — | — |
| 1974 | 74° | 45° | 59° | — | — |
| 1973warmest | 78° | 48° | 63° | — | — |
| 1972 | 67° | 40° | 53° | 0.03" | — |
| 1971 | 55° | 42° | 49° | 0.1" | — |
55 years of data from WATERTON NORTH COLORADO