Weather on December 9
Denver, CO
55 Years of Data
Avg High
45°F
Avg Low
19°F
Warmest
1996
51°F avg
Coldest
2009
1°F avg
About This Date
December 9th in Denver, CO typically brings chilly winter weather, with average highs around 45°F and lows near 19°F — a 26°F daily swing. Over 55 years of records, the warmest December 9th was in 1996 (51°F average), while the coldest was 2009 (1°F) — a 50°F range across recorded history. Precipitation has occurred on 13% of recorded December 9th dates, with snow falling 13% of the time (heaviest snowfall: 5.5"). The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°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
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 40° | 47° | — | — |
| 2024 | 59° | 25° | 42° | — | — |
| 2023 | 40° | 21° | 30° | 1.35" | 5" |
| 2022 | 44° | 19° | 32° | — | — |
| 2021 | 54° | 34° | 44° | — | — |
| 2020 | 60° | 29° | 44° | — | — |
| 2019 | 55° | 25° | 40° | — | — |
| 2018 | 47° | 20° | 33° | — | — |
| 2017 | 54° | — | — | — | — |
| 2016 | 17° | 1° | 9° | — | — |
| 2015 | 58° | 38° | 48° | — | — |
| 2014 | 48° | 26° | 37° | — | — |
| 2013 | 19° | -4° | 8° | — | — |
| 2012 | 50° | 17° | 34° | 0.05" | 0.7" |
| 2011 | 35° | 17° | 26° | — | — |
| 2010 | 59° | 23° | 41° | — | — |
| 2009coldest | 12° | -10° | 1° | — | — |
| 2008 | 52° | 19° | 35° | 1.02" | 4.5" |
| 2007 | 33° | 8° | 21° | 0.74" | 5.5" |
| 2006 | 62° | 29° | 45° | — | — |
| 2005 | 38° | -2° | 18° | — | — |
| 2004 | 55° | 30° | 43° | — | — |
| 2003 | 33° | 14° | 24° | 0.91" | 4" |
| 2002 | 39° | 19° | 29° | — | — |
| 2001 | 60° | 19° | 40° | — | — |
| 2000 | 52° | 14° | 33° | — | — |
| 1999 | 29° | 8° | 18° | — | — |
| 1998 | 48° | 13° | 30° | — | — |
| 1997 | 52° | 28° | 40° | — | — |
| 1996warmest | 66° | 36° | 51° | — | — |
| 1995 | 34° | 2° | 18° | — | — |
| 1994 | 28° | 6° | 17° | — | — |
| 1993 | 63° | 36° | 49° | — | — |
| 1992 | 47° | 42° | 44° | — | — |
| 1991 | 43° | 18° | 30° | — | — |
| 1990 | 62° | 32° | 47° | — | — |
| 1989 | 57° | 22° | 39° | — | — |
| 1988 | 31° | 10° | 20° | — | — |
| 1987 | 65° | 26° | 45° | — | — |
| 1986 | 36° | 14° | 25° | 0.76" | 4" |
| 1985 | 34° | 22° | 28° | 0.84" | 5" |
| 1984 | 55° | 30° | 43° | — | — |
| 1983 | 52° | 18° | 35° | — | — |
| 1982 | 22° | 13° | 17° | — | — |
| 1981 | 64° | 34° | 49° | — | — |
| 1980 | 40° | 18° | 29° | — | — |
| 1979 | 49° | 28° | 38° | — | — |
| 1978 | 27° | 2° | 14° | — | — |
| 1977 | 24° | 2° | 13° | — | — |
| 1976 | 63° | 33° | 48° | — | — |
| 1975 | 55° | 31° | 43° | — | — |
| 1974 | 40° | 19° | 29° | — | — |
| 1973 | 52° | 23° | 37° | — | — |
| 1972 | 12° | -5° | 4° | — | — |
| 1971 | 50° | 4° | 27° | — | — |
55 years of data from LAKEWOOD