Weather on December 18
Denver, CO
55 Years of Data
Avg High
44°F
Avg Low
17°F
Warmest
1979
50°F avg
Coldest
2016
-7°F avg
About This Date
December 18th in Denver, CO typically brings chilly winter weather, with average highs around 44°F and lows near 17°F — a 27°F daily swing. Over 55 years of records, the warmest December 18th was in 1979 (50°F average), while the coldest was 2016 (-7°F) — a 57°F range across recorded history. Precipitation has occurred on 15% of recorded December 18th dates, with snow falling 13% of the time (heaviest snowfall: 9.2"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 18th in Denver, CO? Bring layers as temperatures can vary throughout the day.
Cooling Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 51° | 32° | 42° | 0.05" | — |
| 2024 | 52° | 22° | 37° | — | — |
| 2023 | 60° | 18° | 39° | — | — |
| 2022 | 36° | 10° | 23° | — | — |
| 2021 | 40° | 7° | 23° | — | — |
| 2020 | 53° | 25° | 39° | — | — |
| 2019 | 43° | 17° | 30° | — | — |
| 2018 | 58° | 23° | 40° | — | — |
| 2017 | 40° | 16° | 28° | — | — |
| 2016coldest | 1° | -15° | -7° | 0.05" | 0.4" |
| 2015 | 22° | 10° | 16° | — | — |
| 2014 | 41° | 21° | 31° | — | — |
| 2013 | 63° | 29° | 46° | — | — |
| 2012 | 52° | 24° | 38° | — | — |
| 2011 | 43° | 15° | 29° | — | — |
| 2010 | 29° | 13° | 21° | — | — |
| 2009 | 52° | 21° | 36° | — | — |
| 2008 | 40° | 8° | 24° | — | — |
| 2007 | 54° | 9° | 31° | — | — |
| 2006 | 30° | 21° | 26° | — | — |
| 2005 | 15° | 7° | 11° | 0.03" | 0.1" |
| 2004 | 52° | 28° | 40° | — | — |
| 2003 | 57° | 17° | 37° | — | — |
| 2002 | 51° | 23° | 37° | — | — |
| 2001 | 59° | 23° | 41° | — | — |
| 2000 | 58° | 21° | 39° | — | — |
| 1999 | 46° | 26° | 36° | — | — |
| 1998 | 42° | 7° | 24° | 0.08" | 0.3" |
| 1997 | 44° | 23° | 34° | — | — |
| 1996 | 18° | -9° | 4° | — | — |
| 1995 | 29° | 14° | 21° | — | — |
| 1994 | 65° | 25° | 45° | — | — |
| 1993 | 44° | 10° | 27° | — | — |
| 1992 | 40° | 8° | 24° | 0.2" | 1" |
| 1991 | 35° | 18° | 26° | — | — |
| 1990 | 46° | 25° | 35° | — | — |
| 1989 | 16° | -7° | 4° | 0.28" | 1.7" |
| 1988 | 59° | 30° | 45° | — | — |
| 1987 | 38° | 20° | 29° | — | — |
| 1986 | 45° | 18° | 31° | — | — |
| 1985 | 47° | 21° | 34° | — | — |
| 1984 | 36° | 12° | 24° | — | — |
| 1983 | 16° | -1° | 8° | — | — |
| 1982 | 45° | 25° | 35° | — | — |
| 1981 | 41° | 21° | 31° | — | — |
| 1980 | 49° | 24° | 36° | 0.05" | 0.1" |
| 1979warmest | 66° | 33° | 50° | — | — |
| 1978 | 45° | 22° | 33° | — | — |
| 1977 | 58° | 30° | 44° | — | — |
| 1976 | 64° | 26° | 45° | — | — |
| 1975 | 47° | 1° | 24° | — | — |
| 1974 | 47° | 19° | 33° | — | — |
| 1973 | 39° | 17° | 28° | 1.52" | 9.2" |
| 1972 | 52° | 30° | 41° | — | — |
| 1971 | 58° | 29° | 43° | — | — |
55 years of data from DENVER-STAPLETON