Weather on December 18
Denver, CO
55 Years of Data
Avg High
47°F
Avg Low
20°F
Warmest
1980
59°F avg
Coldest
2016
-1°F avg
About This Date
December 18th in Denver, CO typically brings chilly winter weather, with average highs around 47°F and lows near 20°F — a 27°F daily swing. Over 55 years of records, the warmest December 18th was in 1980 (59°F average), while the coldest was 2016 (-1°F) — a 60°F range across recorded history. Precipitation has occurred on 9% of recorded December 18th dates, with snow falling 7% of the time (heaviest snowfall: 4"). 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
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 31° | 51° | 0.03" | — |
| 2024 | 56° | 22° | 39° | — | — |
| 2023 | 61° | 27° | 44° | — | — |
| 2022 | 37° | 15° | 26° | — | — |
| 2021 | 42° | 9° | 25° | — | — |
| 2020 | 50° | 23° | 37° | — | — |
| 2019 | 43° | 15° | 29° | — | — |
| 2018 | 61° | 41° | 51° | — | — |
| 2017 | 38° | 19° | 28° | — | — |
| 2016coldest | 6° | -8° | -1° | — | — |
| 2015 | 25° | 9° | 17° | — | — |
| 2014 | 43° | 23° | 33° | — | — |
| 2013 | 62° | 32° | 47° | — | — |
| 2012 | 50° | 32° | 41° | — | — |
| 2011 | 44° | 25° | 34° | — | — |
| 2010 | 42° | 12° | 27° | — | — |
| 2009 | 56° | 25° | 40° | — | — |
| 2008 | 45° | 13° | 29° | — | — |
| 2007 | 54° | 22° | 38° | — | — |
| 2006 | 34° | 20° | 27° | — | — |
| 2005 | 18° | 7° | 12° | 0.08" | 1" |
| 2004 | 58° | 26° | 42° | — | — |
| 2003 | 52° | 16° | 34° | — | — |
| 2002 | 50° | 26° | 38° | — | — |
| 2001 | 56° | 24° | 40° | — | — |
| 2000 | 58° | 22° | 40° | — | — |
| 1999 | 47° | 19° | 33° | — | — |
| 1998 | 64° | 28° | 46° | — | — |
| 1997 | 55° | 25° | 40° | — | — |
| 1996 | 18° | -9° | 4° | — | — |
| 1995 | 29° | 23° | 26° | 0.08" | — |
| 1994 | 57° | 24° | 41° | — | — |
| 1993 | 36° | 14° | 25° | — | — |
| 1992 | 34° | 9° | 21° | — | — |
| 1991 | 42° | 20° | 31° | — | — |
| 1990 | 40° | 27° | 33° | — | — |
| 1989 | 27° | -3° | 12° | 0.58" | 4" |
| 1988 | 53° | 26° | 40° | — | — |
| 1987 | 38° | 12° | 25° | — | — |
| 1986 | 36° | 17° | 26° | — | — |
| 1985 | 49° | 19° | 34° | — | — |
| 1984 | 52° | 26° | 39° | — | — |
| 1983 | 24° | -2° | 11° | — | 0.5" |
| 1982 | 68° | 32° | 50° | — | — |
| 1981 | 35° | 12° | 24° | — | — |
| 1980warmest | 74° | 45° | 59° | — | — |
| 1979 | 66° | 35° | 51° | — | — |
| 1978 | 43° | 22° | 32° | — | — |
| 1977 | 48° | 34° | 41° | — | — |
| 1976 | 63° | — | — | — | — |
| 1975 | 23° | 3° | 13° | — | — |
| 1974 | 53° | 21° | 37° | — | — |
| 1973 | 61° | 31° | 46° | 0.25" | 1" |
| 1972 | 55° | 38° | 46° | — | — |
| 1971 | 59° | 29° | 44° | — | — |
55 years of data from LAKEWOOD