Weather on December 3
Boulder, CO
55 Years of Data
Avg High
49°F
Avg Low
24°F
Warmest
1975
55°F avg
Coldest
1978
7°F avg
About This Date
December 3rd in Boulder, CO typically brings chilly winter weather, with average highs around 49°F and lows near 24°F — a 25°F daily swing. Over 55 years of records, the warmest December 3rd was in 1975 (55°F average), while the coldest was 1978 (7°F) — a 48°F range across recorded history. Precipitation has occurred on 18% of recorded December 3rd dates, with snow falling 18% of the time (heaviest snowfall: 8"). The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for December 3rd in Boulder, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 34° | 19° | 26° | — | — |
| 2024 | 59° | 30° | 45° | — | — |
| 2023 | 41° | 32° | 37° | — | — |
| 2022 | 54° | 19° | 37° | — | — |
| 2021 | 61° | 36° | 48° | — | — |
| 2020 | 50° | 23° | 37° | — | — |
| 2019 | 55° | 32° | 44° | — | — |
| 2018 | 34° | 21° | 28° | — | — |
| 2017 | 66° | 35° | 51° | — | — |
| 2016 | 43° | 16° | 29° | — | — |
| 2015 | 52° | 20° | 36° | — | — |
| 2014 | 57° | 28° | 43° | — | — |
| 2013 | 53° | 22° | 37° | 0.05" | 0.3" |
| 2012 | 62° | 45° | 53° | — | — |
| 2011 | 30° | 20° | 25° | 0.71" | 8" |
| 2010 | 65° | 34° | 49° | — | — |
| 2009 | 17° | 0° | 9° | 0.03" | 0.2" |
| 2008 | 55° | 22° | 38° | 0.08" | 0.3" |
| 2007 | 60° | 24° | 42° | — | — |
| 2006 | 30° | 3° | 17° | — | — |
| 2005 | 53° | 27° | 40° | 0.33" | 0.2" |
| 2004 | 48° | 9° | 28° | — | — |
| 2003 | 49° | 26° | 37° | — | — |
| 2002 | 45° | 26° | 35° | — | — |
| 2001 | 66° | 32° | 49° | — | — |
| 2000 | 55° | 25° | 40° | — | — |
| 1999 | 40° | 29° | 34° | 1.5" | 4.8" |
| 1998 | 64° | 35° | 50° | — | — |
| 1997 | 36° | 18° | 27° | 0.36" | 2.7" |
| 1996 | 47° | 14° | 30° | — | — |
| 1995 | 58° | 31° | 44° | — | — |
| 1994 | 56° | 32° | 44° | — | — |
| 1993 | 47° | 24° | 35° | — | — |
| 1992 | 49° | 15° | 32° | 0.05" | 1.4" |
| 1991 | 43° | 17° | 30° | — | — |
| 1990 | 40° | 13° | 26° | — | — |
| 1989 | 48° | 13° | 30° | — | — |
| 1988 | 55° | 28° | 42° | — | — |
| 1987 | 65° | 40° | 52° | — | — |
| 1986 | 33° | 17° | 25° | — | — |
| 1985 | 54° | 8° | 31° | — | — |
| 1984 | 36° | 12° | 24° | — | — |
| 1983 | 46° | 15° | 31° | — | — |
| 1982 | 50° | 24° | 37° | — | — |
| 1981 | 48° | 26° | 37° | — | — |
| 1980 | 70° | 23° | 46° | — | — |
| 1979 | 55° | 40° | 47° | — | — |
| 1978coldest | 12° | 1° | 7° | — | — |
| 1977 | 58° | 50° | 54° | — | — |
| 1976 | 56° | 31° | 43° | — | — |
| 1975warmest | 69° | 41° | 55° | — | — |
| 1974 | 52° | 24° | 38° | — | — |
| 1973 | 44° | 26° | 35° | 1.02" | 5.8" |
| 1972 | 53° | 12° | 33° | 0.03" | 0.4" |
| 1971 | 35° | 18° | 26° | — | — |
55 years of data from BOULDER MUNI AP