Weather on December 26
Longmont, CO
55 Years of Data
Avg High
44°F
Avg Low
14°F
Warmest
2025
53°F avg
Coldest
1987
3°F avg
About This Date
December 26th in Longmont, CO typically brings chilly winter weather, with average highs around 44°F and lows near 14°F — a 30°F daily swing. Over 55 years of records, the warmest December 26th was in 2025 (53°F average), while the coldest was 1987 (3°F) — a 50°F range across recorded history. Precipitation has occurred on 16% of recorded December 26th dates, with snow falling 7% of the time (heaviest snowfall: 9.8"). The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for December 26th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 70° | 37° | 53° | — | — |
| 2024 | 49° | 25° | 37° | 0.1" | — |
| 2023 | 32° | 12° | 22° | — | — |
| 2022 | 54° | 19° | 36° | — | — |
| 2021 | 54° | 22° | 38° | — | — |
| 2020 | 55° | 21° | 38° | — | — |
| 2019 | 54° | 23° | 38° | — | — |
| 2018 | 43° | 21° | 32° | — | — |
| 2017 | 22° | 6° | 14° | 0.03" | — |
| 2016 | 45° | 12° | 28° | — | — |
| 2015 | 28° | 14° | 21° | 0.36" | 2.6" |
| 2014 | 27° | 15° | 21° | 1.24" | 9.8" |
| 2013 | 57° | 27° | 42° | — | — |
| 2012 | 26° | 0° | 13° | — | — |
| 2011 | 53° | 20° | 36° | — | — |
| 2010 | 52° | 22° | 37° | — | — |
| 2009 | 39° | 17° | 28° | 0.13" | 0.7" |
| 2008 | 46° | 29° | 37° | — | — |
| 2007 | 31° | 6° | 18° | 0.13" | 0.4" |
| 2006 | 59° | 37° | 48° | — | — |
| 2005 | 67° | 36° | 51° | — | — |
| 2004 | 50° | 26° | 38° | — | — |
| 2003 | 52° | 17° | 34° | — | — |
| 2002 | 36° | 4° | 20° | — | — |
| 2001 | 46° | 5° | 26° | — | — |
| 2000 | 29° | 4° | 16° | 0.03" | — |
| 1999 | 61° | 22° | 41° | — | — |
| 1998 | 50° | 20° | 35° | — | — |
| 1997 | 34° | 6° | 20° | — | — |
| 1996 | 54° | 2° | 28° | — | — |
| 1995 | 55° | 9° | 32° | — | — |
| 1994 | 60° | 25° | 42° | — | — |
| 1993 | 59° | 15° | 37° | — | — |
| 1992 | 33° | 6° | 20° | — | — |
| 1991 | 50° | 15° | 33° | — | — |
| 1990 | 20° | -5° | 7° | — | — |
| 1989 | 44° | -22° | 11° | — | — |
| 1988 | 31° | 12° | 21° | 0.58" | — |
| 1987coldest | 20° | -15° | 3° | — | — |
| 1986 | 41° | 14° | 28° | — | — |
| 1985 | 45° | 25° | 35° | — | — |
| 1984 | 55° | 11° | 33° | — | — |
| 1983 | 19° | 2° | 10° | — | — |
| 1982 | 36° | -3° | 17° | 1.65" | — |
| 1981 | 26° | 11° | 18° | — | — |
| 1980 | 65° | 31° | 48° | — | — |
| 1979 | 59° | 21° | 40° | — | — |
| 1978 | 36° | 10° | 23° | — | — |
| 1977 | 44° | 8° | 26° | — | — |
| 1976 | 53° | 15° | 34° | — | — |
| 1975 | 47° | 20° | 33° | — | — |
| 1974 | 37° | 2° | 19° | — | — |
| 1973 | 33° | 15° | 24° | — | — |
| 1972 | 38° | 17° | 27° | — | — |
| 1971 | 65° | 25° | 45° | — | — |
55 years of data from LONGMONT 2 ESE