Weather on December 9
Arvada, CO
55 Years of Data
Avg High
45°F
Avg Low
18°F
Warmest
1996
55°F avg
Coldest
1972
4°F avg
About This Date
December 9th in Arvada, CO typically brings chilly winter weather, with average highs around 45°F and lows near 18°F — a 27°F daily swing. Over 55 years of records, the warmest December 9th was in 1996 (55°F average), while the coldest was 1972 (4°F) — a 51°F range across recorded history. Precipitation has occurred on 13% of recorded December 9th dates, with snow falling 13% of the time (heaviest snowfall: 6.4"). The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for December 9th in Arvada, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 26° | 41° | — | — |
| 2024 | 56° | 20° | 38° | — | — |
| 2023 | 42° | 20° | 31° | 0.99" | 6.4" |
| 2022 | 48° | 21° | 35° | — | — |
| 2021 | 57° | 28° | 43° | — | — |
| 2020 | 67° | 30° | 48° | — | — |
| 2019 | 39° | 20° | 29° | — | — |
| 2018 | 50° | 11° | 30° | — | — |
| 2017 | 61° | 14° | 37° | — | — |
| 2016 | 20° | -4° | 8° | — | — |
| 2015 | 59° | 34° | 46° | — | — |
| 2014 | 50° | 26° | 38° | — | — |
| 2013 | 23° | -6° | 9° | — | — |
| 2012 | 54° | 16° | 35° | 0.25" | 1" |
| 2011 | 38° | 17° | 27° | — | — |
| 2010 | 47° | 31° | 39° | — | — |
| 2009 | 18° | -10° | 4° | — | — |
| 2008 | 26° | 10° | 18° | — | — |
| 2007 | 34° | 9° | 21° | — | — |
| 2006 | 53° | 27° | 40° | — | — |
| 2005 | 38° | 10° | 24° | — | — |
| 2004 | 43° | 29° | 36° | — | — |
| 2003 | 34° | 8° | 21° | — | — |
| 2002 | 51° | 23° | 37° | — | — |
| 2001 | 55° | 22° | 38° | — | — |
| 2000 | 40° | 23° | 31° | — | — |
| 1999 | 28° | 7° | 17° | — | — |
| 1998 | 50° | 20° | 35° | — | — |
| 1997 | 50° | 20° | 35° | 0.18" | 1" |
| 1996warmest | 67° | 43° | 55° | — | — |
| 1995 | 26° | -2° | 12° | — | — |
| 1994 | 28° | 10° | 19° | 0.25" | 3" |
| 1993 | 63° | 16° | 39° | — | — |
| 1992 | 52° | 22° | 37° | — | — |
| 1991 | 46° | 30° | 38° | — | — |
| 1990 | 52° | 25° | 38° | — | — |
| 1989 | 50° | 26° | 38° | — | — |
| 1988 | 32° | 7° | 19° | — | — |
| 1987 | 50° | 17° | 34° | — | — |
| 1986 | 39° | 10° | 25° | 0.79" | 5.5" |
| 1985 | 40° | 20° | 30° | 1.14" | 6" |
| 1984 | 52° | 30° | 41° | — | — |
| 1983 | 54° | 20° | 37° | — | — |
| 1982 | 26° | 12° | 19° | — | — |
| 1981 | 69° | 36° | 52° | — | — |
| 1980 | 44° | — | — | — | — |
| 1979 | 52° | 26° | 39° | — | — |
| 1978 | 38° | 7° | 22° | — | — |
| 1977 | 38° | -2° | 18° | — | — |
| 1976 | 58° | 32° | 45° | — | — |
| 1975 | 67° | 38° | 52° | — | — |
| 1974 | 52° | 24° | 38° | — | — |
| 1973 | 42° | 22° | 32° | — | — |
| 1972coldest | 16° | -7° | 4° | 0.46" | 3" |
| 1971 | 56° | -8° | 24° | — | — |
55 years of data from WATERTON NORTH COLORADO