Weather on December 6
Boulder, CO
55 Years of Data
Avg High
47°F
Avg Low
22°F
Warmest
1981
54°F avg
Coldest
1972
-5°F avg
About This Date
December 6th in Boulder, CO typically brings chilly winter weather, with average highs around 47°F and lows near 22°F — a 25°F daily swing. Over 55 years of records, the warmest December 6th was in 1981 (54°F average), while the coldest was 1972 (-5°F) — a 59°F range across recorded history. Precipitation has occurred on 20% of recorded December 6th dates, with snow falling 15% of the time (heaviest snowfall: 5.8"). The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for December 6th in Boulder, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 50° | 30° | 40° | — | — |
| 2024 | 59° | 32° | 46° | — | — |
| 2023 | 64° | 34° | 49° | — | — |
| 2022 | 50° | 32° | 41° | — | — |
| 2021 | 32° | 18° | 25° | — | — |
| 2020 | 61° | 30° | 46° | — | — |
| 2019 | 45° | 28° | 37° | — | — |
| 2018 | 27° | 21° | 24° | — | — |
| 2017 | 41° | 19° | 30° | — | — |
| 2016 | 32° | 11° | 21° | — | — |
| 2015 | 56° | 21° | 38° | — | — |
| 2014 | 49° | 29° | 39° | — | — |
| 2013 | 8° | -9° | 0° | 0.05" | 0.3" |
| 2012 | 60° | 38° | 49° | — | — |
| 2011 | 35° | -4° | 16° | — | — |
| 2010 | 47° | 22° | 34° | — | — |
| 2009 | 25° | 11° | 18° | 0.61" | 5.8" |
| 2008 | 58° | 26° | 42° | — | — |
| 2007 | 52° | 34° | 43° | 0.03" | — |
| 2006 | 46° | 24° | 35° | — | — |
| 2005 | 32° | 6° | 19° | 0.25" | 1.5" |
| 2004 | 45° | 24° | 34° | — | — |
| 2003 | 63° | 26° | 44° | — | — |
| 2002 | 49° | 22° | 35° | — | — |
| 2001 | 55° | 34° | 44° | — | — |
| 2000 | 53° | 17° | 35° | 0.15" | 1.5" |
| 1999 | 50° | 27° | 38° | — | — |
| 1998 | 32° | 20° | 26° | 0.05" | 0.4" |
| 1997 | 43° | 14° | 28° | — | — |
| 1996 | 44° | 30° | 37° | — | — |
| 1995 | 56° | 27° | 41° | 0.13" | — |
| 1994 | 33° | 23° | 28° | 0.13" | 0.9" |
| 1993 | 49° | 17° | 33° | — | — |
| 1992 | 31° | 6° | 18° | — | — |
| 1991 | 63° | 30° | 46° | — | — |
| 1990 | 45° | 18° | 31° | 0.15" | 2.4" |
| 1989 | 64° | 29° | 46° | — | — |
| 1988 | 53° | 31° | 42° | — | — |
| 1987 | 60° | 38° | 49° | — | — |
| 1986 | 40° | 25° | 32° | — | — |
| 1985 | 54° | 30° | 42° | — | — |
| 1984 | 67° | 11° | 39° | — | — |
| 1983 | 40° | 11° | 25° | — | — |
| 1982 | 53° | 29° | 41° | — | — |
| 1981warmest | 69° | 39° | 54° | — | — |
| 1980 | 47° | 25° | 36° | — | — |
| 1979 | 57° | 21° | 39° | — | — |
| 1978 | 23° | 10° | 17° | 0.94" | 4.5" |
| 1977 | 56° | 7° | 31° | — | — |
| 1976 | 36° | 11° | 23° | — | — |
| 1975 | 54° | 29° | 41° | — | — |
| 1974 | 46° | 33° | 40° | 0.18" | — |
| 1973 | 47° | 13° | 30° | — | — |
| 1972coldest | 5° | -16° | -5° | — | — |
| 1971 | 51° | 26° | 39° | — | — |
55 years of data from BOULDER MUNI AP