Weather on December 17
Denver, CO
55 Years of Data
Avg High
46°F
Avg Low
18°F
Warmest
2025
56°F avg
Coldest
1996
7°F avg
About This Date
December 17th 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 17th was in 2025 (56°F average), while the coldest was 1996 (7°F) — a 49°F range across recorded history. Precipitation has occurred on 9% of recorded December 17th dates, with snow falling 11% of the time (heaviest snowfall: 4.4"). The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for December 17th in Denver, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 70° | 42° | 56° | — | — |
| 2024 | 50° | 25° | 37° | — | — |
| 2023 | 69° | 34° | 51° | — | — |
| 2022 | 36° | 11° | 23° | — | — |
| 2021 | 53° | 20° | 36° | — | — |
| 2020 | 44° | 23° | 34° | — | — |
| 2019 | 38° | 6° | 22° | — | — |
| 2018 | 63° | 24° | 43° | — | — |
| 2017 | 57° | 30° | 44° | — | — |
| 2016 | 32° | -1° | 16° | 1.52" | 4.4" |
| 2015 | 35° | 5° | 20° | — | — |
| 2014 | 35° | 19° | 27° | — | — |
| 2013 | 65° | 27° | 46° | — | — |
| 2012 | 43° | 24° | 33° | — | — |
| 2011 | 39° | 19° | 29° | — | — |
| 2010 | 37° | 20° | 28° | — | — |
| 2009 | 53° | 29° | 41° | — | — |
| 2008 | 40° | 5° | 22° | — | — |
| 2007 | 48° | 11° | 29° | — | — |
| 2006 | 44° | 27° | 35° | — | — |
| 2005 | 31° | 8° | 19° | — | — |
| 2004 | 46° | 23° | 35° | — | — |
| 2003 | 53° | 22° | 37° | — | — |
| 2002 | 67° | 28° | 47° | — | — |
| 2001 | 62° | 11° | 36° | — | — |
| 2000 | 62° | 25° | 43° | — | — |
| 1999 | 50° | 28° | 39° | — | — |
| 1998 | 66° | 24° | 45° | — | — |
| 1997 | 55° | 29° | 42° | — | — |
| 1996coldest | 14° | -1° | 7° | — | — |
| 1995 | 27° | 20° | 23° | 0.1" | 0.1" |
| 1994 | 58° | 27° | 42° | — | — |
| 1993 | 39° | 12° | 26° | — | — |
| 1992 | 30° | 2° | 16° | — | — |
| 1991 | 39° | 23° | 31° | — | — |
| 1990 | 36° | 25° | 30° | 0.08" | 1" |
| 1989 | 24° | 3° | 14° | — | 0.3" |
| 1988 | 51° | 22° | 36° | — | — |
| 1987 | 40° | 12° | 26° | — | — |
| 1986 | 39° | 17° | 28° | — | — |
| 1985 | 43° | 5° | 24° | — | — |
| 1984 | 29° | 10° | 19° | — | — |
| 1983 | 26° | 3° | 15° | — | — |
| 1982 | 70° | 25° | 47° | — | — |
| 1981 | 36° | 14° | 25° | 0.08" | 0.3" |
| 1980 | 74° | 34° | 54° | — | — |
| 1979 | 61° | 13° | 37° | — | — |
| 1978 | 29° | 8° | 18° | — | — |
| 1977 | 49° | 15° | 32° | — | — |
| 1976 | 60° | 20° | 40° | — | — |
| 1975 | 24° | 5° | 15° | 0.48" | 2.4" |
| 1974 | 53° | 20° | 36° | — | — |
| 1973 | 55° | 33° | 44° | — | — |
| 1972 | 47° | 20° | 33° | — | — |
| 1971 | 56° | 14° | 35° | — | — |
55 years of data from NORTHGLENN