Weather on December 27
Boulder, CO
55 Years of Data
Avg High
45°F
Avg Low
22°F
Warmest
1980
59°F avg
Coldest
1988
15°F avg
About This Date
December 27th in Boulder, CO typically brings chilly winter weather, with average highs around 45°F and lows near 22°F. Over 55 years of records, the warmest December 27th was in 1980 (59°F average), while the coldest was 1988 (15°F) — a 44°F range across recorded history. Precipitation has occurred on 11% of recorded December 27th dates, with snow falling 11% of the time (heaviest snowfall: 12.6"). The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
Planning for December 27th in Boulder, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 37° | 45° | — | — |
| 2024 | 46° | 34° | 40° | — | — |
| 2023 | 50° | 28° | 39° | — | — |
| 2022 | 63° | 32° | 47° | — | — |
| 2021 | 43° | 23° | 33° | — | — |
| 2020 | 46° | 30° | 38° | — | — |
| 2019 | 34° | 23° | 29° | — | — |
| 2018 | 32° | 21° | 27° | — | — |
| 2017 | 52° | 2° | 27° | — | — |
| 2016 | 51° | 16° | 33° | — | — |
| 2015 | 27° | 5° | 16° | — | — |
| 2014 | 32° | 2° | 17° | 0.03" | 0.1" |
| 2013 | 59° | 29° | 44° | — | — |
| 2012 | 25° | 6° | 15° | — | — |
| 2011 | 55° | 21° | 38° | — | — |
| 2010 | 46° | 24° | 35° | — | — |
| 2009 | 35° | 15° | 25° | — | — |
| 2008 | 34° | 10° | 22° | — | — |
| 2007 | 21° | 11° | 16° | 0.43" | 2.9" |
| 2006 | 58° | 31° | 44° | — | — |
| 2005 | 56° | 40° | 48° | — | — |
| 2004 | 51° | 33° | 42° | — | — |
| 2003 | 43° | 26° | 34° | — | — |
| 2002 | 53° | 30° | 42° | — | — |
| 2001 | 47° | 21° | 34° | — | — |
| 2000 | 56° | 21° | 38° | — | — |
| 1999 | 54° | 29° | 41° | — | — |
| 1998 | 47° | 35° | 41° | — | — |
| 1997 | 49° | 19° | 34° | — | — |
| 1996 | 59° | 26° | 43° | — | — |
| 1995 | 46° | 16° | 31° | — | — |
| 1994 | 53° | 26° | 40° | — | — |
| 1993 | 45° | 28° | 36° | — | — |
| 1992 | 51° | 36° | 43° | — | — |
| 1991 | 41° | 19° | 30° | — | — |
| 1990 | 51° | 6° | 29° | — | — |
| 1989 | 57° | 11° | 34° | — | — |
| 1988coldest | 30° | 0° | 15° | — | — |
| 1987 | 26° | 16° | 21° | 2.49" | 12.6" |
| 1986 | 45° | 22° | 33° | — | — |
| 1985 | 34° | 21° | 27° | — | — |
| 1984 | 54° | 25° | 39° | — | — |
| 1983 | 24° | 15° | 20° | 0.13" | 0.5" |
| 1982 | 35° | 24° | 30° | — | — |
| 1981 | 30° | 19° | 25° | 0.05" | 0.5" |
| 1980warmest | 74° | 44° | 59° | — | — |
| 1979 | 35° | 29° | 32° | 2.44" | 9.5" |
| 1978 | 25° | 12° | 18° | — | — |
| 1977 | 39° | 13° | 26° | — | — |
| 1976 | 55° | 44° | 50° | — | — |
| 1975 | 49° | 33° | 41° | — | — |
| 1974 | 46° | 16° | 31° | — | — |
| 1973 | 43° | 11° | 27° | — | — |
| 1972 | 67° | 44° | 55° | — | — |
| 1971 | 50° | 24° | 37° | — | — |
55 years of data from BOULDER MUNI AP