Weather on December 31
Denver, CO
55 Years of Data
Avg High
43°F
Avg Low
15°F
Warmest
2011
50°F avg
Coldest
2014
-4°F avg
About This Date
December 31st in Denver, CO typically brings chilly winter weather, with average highs around 43°F and lows near 15°F — a 28°F daily swing. Over 55 years of records, the warmest December 31st was in 2011 (50°F average), while the coldest was 2014 (-4°F) — a 54°F range across recorded history. Precipitation has occurred on 13% of recorded December 31st dates, with snow falling 15% of the time (heaviest snowfall: 3.2"). The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Denver, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 57° | 21° | 39° | — | — |
| 2024 | 49° | 19° | 34° | — | — |
| 2023 | 62° | 20° | 41° | — | — |
| 2022 | 41° | 22° | 31° | — | — |
| 2021 | 51° | 27° | 39° | — | — |
| 2020 | 44° | 17° | 31° | — | — |
| 2019 | 38° | 10° | 24° | — | — |
| 2018 | 54° | 7° | 30° | — | — |
| 2017 | 29° | 11° | 20° | — | — |
| 2016 | 69° | 22° | 45° | — | — |
| 2015 | 31° | 3° | 17° | — | — |
| 2014coldest | 3° | -11° | -4° | — | 0.2" |
| 2013 | 50° | 31° | 40° | — | — |
| 2012 | 42° | 13° | 27° | — | — |
| 2011warmest | 62° | 38° | 50° | — | — |
| 2010 | 32° | 3° | 18° | 0.66" | 3.2" |
| 2009 | 34° | 11° | 22° | — | — |
| 2008 | 63° | 16° | 39° | — | — |
| 2007 | 44° | 15° | 30° | — | — |
| 2006 | 35° | 13° | 24° | — | — |
| 2005 | 53° | 28° | 41° | — | — |
| 2004 | 51° | 25° | 38° | — | — |
| 2003 | 58° | 22° | 40° | — | — |
| 2002 | 58° | 23° | 40° | — | — |
| 2001 | 40° | 12° | 26° | — | — |
| 2000 | 39° | 18° | 28° | 0.33" | 0.1" |
| 1999 | 62° | 24° | 43° | — | — |
| 1998 | 43° | 26° | 34° | — | — |
| 1997 | 64° | 21° | 43° | — | — |
| 1996 | 64° | 28° | 46° | — | — |
| 1995 | 40° | 21° | 30° | — | — |
| 1994 | 17° | -1° | 8° | 0.08" | 1.3" |
| 1993 | 49° | 36° | 42° | — | — |
| 1992 | 37° | 14° | 26° | — | — |
| 1991 | 39° | 18° | 28° | 0.13" | 1" |
| 1990 | 54° | 23° | 38° | — | — |
| 1989 | 38° | 18° | 28° | — | — |
| 1988 | 50° | 18° | 34° | — | — |
| 1987 | 29° | -17° | 6° | — | — |
| 1986 | 37° | 17° | 27° | — | — |
| 1985 | 42° | 19° | 31° | — | — |
| 1984 | 41° | 25° | 33° | — | — |
| 1983 | 45° | 27° | 36° | — | — |
| 1982 | 37° | 0° | 19° | — | — |
| 1981 | 44° | 18° | 31° | — | — |
| 1980 | 61° | 23° | 42° | — | — |
| 1979 | 36° | 0° | 18° | — | — |
| 1978 | 14° | -6° | 4° | — | — |
| 1977 | 41° | 16° | 28° | — | — |
| 1976 | 30° | 2° | 16° | 0.05" | 0.5" |
| 1975 | 41° | 18° | 29° | 0.03" | 0.1" |
| 1974 | 33° | 10° | 22° | — | — |
| 1973 | 17° | -9° | 4° | 0.3" | 1.5" |
| 1972 | 34° | 7° | 20° | — | — |
| 1971 | 55° | 15° | 35° | — | — |
55 years of data from NORTHGLENN