Weather on December 9
Denver, CO
55 Years of Data
Avg High
46°F
Avg Low
18°F
Warmest
1996
54°F avg
Coldest
1972
-4°F avg
About This Date
December 9th in Denver, CO typically brings chilly winter weather, with average highs around 46°F and lows near 18°F — a 28°F daily swing. Over 55 years of records, the warmest December 9th was in 1996 (54°F average), while the coldest was 1972 (-4°F) — a 58°F range across recorded history. Precipitation has occurred on 20% of recorded December 9th dates, with snow falling 18% of the time (heaviest snowfall: 6"). The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for December 9th in Denver, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
2.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 58° | 37° | 47° | — | — |
| 2024 | 60° | 28° | 44° | — | — |
| 2023 | 41° | 20° | 30° | 0.66" | 2.7" |
| 2022 | 55° | 15° | 35° | — | — |
| 2021 | 57° | 31° | 44° | — | — |
| 2020 | 64° | 28° | 46° | — | — |
| 2019 | 62° | 25° | 43° | — | — |
| 2018 | 51° | 18° | 34° | — | — |
| 2017 | 63° | 27° | 45° | — | — |
| 2016 | 17° | 1° | 9° | — | — |
| 2015 | 62° | 39° | 51° | — | — |
| 2014 | 52° | 22° | 37° | — | — |
| 2013 | 18° | -3° | 8° | — | — |
| 2012 | 52° | 19° | 35° | — | — |
| 2011 | 39° | 15° | 27° | — | — |
| 2010 | 54° | 28° | 41° | — | — |
| 2009 | 6° | -11° | -2° | — | — |
| 2008 | 51° | 19° | 35° | 0.51" | 1" |
| 2007 | 23° | 4° | 13° | 0.74" | 4.2" |
| 2006 | 62° | 26° | 44° | — | — |
| 2005 | 33° | -5° | 14° | — | — |
| 2004 | 56° | 35° | 45° | — | — |
| 2003 | 37° | 19° | 28° | 0.76" | 1.5" |
| 2002 | 61° | 19° | 40° | — | — |
| 2001 | 56° | 22° | 39° | — | — |
| 2000 | 56° | 29° | 42° | — | — |
| 1999 | 41° | 9° | 25° | — | — |
| 1998 | 29° | 12° | 20° | 0.48" | 4" |
| 1997 | 33° | 22° | 27° | 0.64" | 2.5" |
| 1996warmest | 69° | 40° | 54° | — | — |
| 1995 | 30° | -1° | 15° | — | — |
| 1994 | 47° | 20° | 33° | — | — |
| 1993 | 61° | 37° | 49° | — | — |
| 1992 | 50° | 29° | 39° | — | — |
| 1991 | 54° | 25° | 39° | — | — |
| 1990 | 62° | 29° | 45° | — | — |
| 1989 | 59° | 32° | 46° | — | — |
| 1988 | 51° | 14° | 33° | — | — |
| 1987 | 46° | — | — | — | — |
| 1986 | 23° | 2° | 12° | 0.1" | — |
| 1985 | 27° | 9° | 18° | 0.81" | 6" |
| 1984 | 59° | 31° | 45° | — | — |
| 1983 | 38° | 22° | 30° | — | — |
| 1982 | 42° | 14° | 28° | 0.08" | 0.3" |
| 1981 | 55° | 24° | 40° | — | — |
| 1980 | 41° | 16° | 28° | — | — |
| 1979 | 55° | 19° | 37° | — | — |
| 1978 | 18° | -16° | 1° | — | — |
| 1977 | 12° | -7° | 3° | 0.18" | 1" |
| 1976 | 62° | 26° | 44° | — | — |
| 1975 | 66° | 34° | 50° | — | — |
| 1974 | 55° | 16° | 35° | — | — |
| 1973 | 37° | 22° | 29° | — | — |
| 1972coldest | 6° | -14° | -4° | 0.28" | 1.8" |
| 1971 | 47° | -6° | 21° | — | — |
55 years of data from NORTHGLENN