Weather on December 15
Alamosa, CO
55 Years of Data
About This Date
December 15th in Alamosa, CO typically brings cold winter weather, with average highs around 34°F and lows near -2°F — a 36°F daily swing. Over 55 years of records, the warmest December 15th was in 2016 (39°F average), while the coldest was 1991 (-6°F) — a 45°F range across recorded history. Precipitation has occurred on 27% of recorded December 15th dates, with snow falling 29% of the time (heaviest snowfall: 4.3"). The last decade has been 7.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.7°F warmer on this date compared to 20-30 years ago.
Planning for December 15th in Alamosa, CO? Bundle up with warm layers and protect extremities from the cold. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 50° | 10° | 30° | — | — |
| 2024 | 39° | 2° | 20° | — | — |
| 2023 | 36° | 5° | 20° | 0.1" | 0.3" |
| 2022 | 32° | -5° | 14° | — | — |
| 2021 | 50° | 11° | 30° | 0.03" | 0.1" |
| 2020 | 27° | -2° | 12° | 0.1" | 0.6" |
| 2019 | 49° | 19° | 34° | 0.53" | 4.3" |
| 2018 | 42° | -1° | 21° | — | — |
| 2017 | 36° | 2° | 19° | 0.13" | 1.3" |
| 2016warmest | 54° | 25° | 39° | — | — |
| 2015 | 40° | 10° | 25° | — | 0.3" |
| 2014 | 41° | 9° | 25° | 0.03" | 0.1" |
| 2013 | 29° | -5° | 12° | — | — |
| 2012 | 29° | 3° | 16° | 0.51" | 3" |
| 2011 | 36° | -3° | 17° | — | — |
| 2010 | 54° | 0° | 27° | — | — |
| 2009 | 34° | -7° | 13° | — | — |
| 2008 | 25° | -5° | 10° | 0.03" | 0.1" |
| 2007 | 18° | -17° | 1° | 0.15" | 1.4" |
| 2006 | 48° | 8° | 28° | — | — |
| 2005 | 32° | -10° | 11° | — | — |
| 2004 | 44° | 1° | 23° | — | — |
| 2003 | 30° | 7° | 18° | — | — |
| 2002 | 37° | 6° | 22° | — | — |
| 2001 | 34° | 1° | 17° | — | — |
| 2000 | 38° | 5° | 21° | — | — |
| 1999 | 26° | -10° | 8° | — | — |
| 1998 | 45° | 0° | 22° | — | — |
| 1997 | 23° | -12° | 6° | — | — |
| 1996 | 27° | 1° | 14° | — | — |
| 1995 | 39° | 1° | 20° | — | — |
| 1994 | 32° | 1° | 17° | — | — |
| 1993 | 39° | -2° | 19° | — | — |
| 1992 | 12° | -19° | -3° | 0.08" | 0.3" |
| 1991coldest | 15° | -28° | -6° | — | — |
| 1990 | 29° | -3° | 13° | 0.13" | 0.5" |
| 1989 | 35° | 2° | 18° | — | — |
| 1988 | 32° | 5° | 19° | 0.05" | 0.4" |
| 1987 | 19° | -14° | 3° | — | — |
| 1986 | 37° | 0° | 19° | — | — |
| 1985 | 23° | -16° | 4° | — | — |
| 1984 | 33° | 6° | 20° | 0.15" | 0.6" |
| 1983 | 28° | -8° | 10° | 0.13" | 0.5" |
| 1982 | 32° | -3° | 15° | — | — |
| 1981 | 45° | 4° | 24° | — | — |
| 1980 | 49° | 5° | 27° | — | — |
| 1979 | 45° | -2° | 21° | — | — |
| 1978 | 18° | -15° | 2° | — | — |
| 1977 | 57° | 10° | 34° | — | — |
| 1976 | 37° | -10° | 14° | — | — |
| 1975 | 24° | -8° | 8° | — | — |
| 1974 | 29° | 0° | 14° | 0.03" | 0.2" |
| 1973 | 36° | -1° | 18° | — | — |
| 1972 | 16° | -22° | -3° | — | — |
| 1971 | 26° | -14° | 6° | — | — |