Weather on December 31
Alamosa, CO
55 Years of Data
Avg High
32°F
Avg Low
-2°F
Warmest
1996
34°F avg
Coldest
1974
-11°F avg
About This Date
December 31st in Alamosa, CO typically brings cold winter weather, with average highs around 32°F and lows near -2°F — a 34°F daily swing. Over 55 years of records, the warmest December 31st was in 1996 (34°F average), while the coldest was 1974 (-11°F) — a 45°F range across recorded history. Precipitation has occurred on 9% of recorded December 31st dates, with snow falling 9% of the time (heaviest snowfall: 2.7"). The last decade has been 4.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.2°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Alamosa, CO? Bundle up with warm layers and protect extremities from the cold.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 48° | 7° | 27° | — | — |
| 2024 | 46° | 5° | 26° | — | — |
| 2023 | 35° | -4° | 16° | — | — |
| 2022 | 37° | 7° | 22° | — | — |
| 2021 | 39° | 18° | 28° | — | — |
| 2020 | 28° | -7° | 11° | — | — |
| 2019 | 19° | -23° | -2° | — | — |
| 2018 | 23° | -12° | 6° | — | — |
| 2017 | 63° | 5° | 34° | — | — |
| 2016 | 26° | -7° | 10° | — | — |
| 2015 | 34° | -4° | 15° | — | — |
| 2014 | 17° | -1° | 8° | 0.05" | 0.5" |
| 2013 | 18° | -10° | 4° | — | — |
| 2012 | 16° | -14° | 1° | 0.05" | 0.3" |
| 2011 | 48° | 11° | 29° | — | — |
| 2010 | 32° | 8° | 20° | 0.08" | 0.3" |
| 2009 | 32° | 4° | 18° | — | — |
| 2008 | 40° | -4° | 18° | — | — |
| 2007 | 23° | -23° | 0° | — | — |
| 2006 | 20° | -1° | 10° | — | — |
| 2005 | 43° | 3° | 23° | — | — |
| 2004 | 47° | 11° | 29° | — | — |
| 2003 | 37° | 2° | 19° | — | — |
| 2002 | 44° | 0° | 22° | — | — |
| 2001 | 26° | 10° | 18° | — | — |
| 2000 | 43° | 0° | 21° | — | — |
| 1999 | 44° | -3° | 21° | — | — |
| 1998 | 42° | 6° | 24° | — | — |
| 1997 | 25° | -7° | 9° | — | — |
| 1996warmest | 52° | 17° | 34° | — | — |
| 1995 | 38° | 10° | 24° | 0.28" | 0.9" |
| 1994 | 37° | 13° | 25° | — | — |
| 1993 | 37° | 0° | 19° | — | — |
| 1992 | 32° | -8° | 12° | — | — |
| 1991 | 19° | 0° | 10° | — | — |
| 1990 | 19° | -19° | 0° | — | — |
| 1989 | 33° | -8° | 13° | — | — |
| 1988 | 35° | -8° | 14° | — | — |
| 1987 | 15° | -27° | -6° | — | — |
| 1986 | 35° | -8° | 14° | — | — |
| 1985 | 32° | 4° | 18° | — | — |
| 1984 | 35° | 6° | 21° | — | — |
| 1983 | 19° | -14° | 3° | — | — |
| 1982 | 26° | -19° | 4° | — | — |
| 1981 | 37° | 8° | 23° | — | — |
| 1980 | 55° | 4° | 29° | — | — |
| 1979 | 18° | -19° | 0° | — | — |
| 1978 | 29° | 1° | 15° | — | — |
| 1977 | 36° | 10° | 23° | 0.25" | 2.7" |
| 1976 | 39° | 3° | 21° | — | — |
| 1975 | 29° | 2° | 15° | — | — |
| 1974coldest | 8° | -30° | -11° | — | — |
| 1973 | 15° | -8° | 4° | — | — |
| 1972 | 15° | -24° | -4° | — | — |
| 1971 | 30° | 0° | 15° | — | — |
55 years of data from ALAMOSA 1E