Weather on December 29
Longmont, CO
55 Years of Data
Avg High
43°F
Avg Low
16°F
Warmest
1996
49°F avg
Coldest
1983
-5°F avg
About This Date
December 29th in Longmont, CO typically brings chilly winter weather, with average highs around 43°F and lows near 16°F — a 27°F daily swing. Over 55 years of records, the warmest December 29th was in 1996 (49°F average), while the coldest was 1983 (-5°F) — a 54°F range across recorded history. Precipitation has occurred on 11% of recorded December 29th dates, with snow falling 11% of the time (heaviest snowfall: 12.5"). The last decade has been 9.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 9.0°F cooler on this date compared to 20-30 years ago.
Planning for December 29th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 37° | 12° | 25° | — | — |
| 2024 | 53° | 27° | 40° | — | — |
| 2023 | 50° | 16° | 33° | — | — |
| 2022 | 52° | 23° | 37° | 3.12" | 6.4" |
| 2021 | 38° | 13° | 25° | — | — |
| 2020 | 30° | 24° | 27° | 0.46" | 1.5" |
| 2019 | 30° | 18° | 24° | — | — |
| 2018 | 23° | 6° | 15° | — | — |
| 2017 | 57° | 22° | 39° | — | — |
| 2016 | 41° | 19° | 30° | — | — |
| 2015 | 27° | 9° | 18° | — | — |
| 2014 | 22° | 8° | 15° | 0.33" | 3.3" |
| 2013 | 38° | 12° | 25° | 0.15" | 1.5" |
| 2012 | 32° | 7° | 19° | — | — |
| 2011 | 56° | 43° | 49° | — | — |
| 2010 | 54° | 27° | 40° | — | — |
| 2009 | 40° | 16° | 28° | — | — |
| 2008 | 55° | 33° | 44° | — | — |
| 2007 | 32° | 11° | 21° | — | — |
| 2006 | 32° | 23° | 28° | 1.85" | 12.5" |
| 2005 | 56° | 38° | 47° | — | — |
| 2004 | 48° | 29° | 38° | — | — |
| 2003 | 42° | 21° | 32° | — | — |
| 2002 | 60° | 26° | 43° | — | — |
| 2001 | 55° | 15° | 35° | — | — |
| 2000 | 43° | 8° | 25° | — | — |
| 1999 | 63° | 30° | 46° | — | — |
| 1998 | 53° | 28° | 41° | — | — |
| 1997 | 39° | 19° | 29° | — | — |
| 1996warmest | 57° | 41° | 49° | — | — |
| 1995 | 46° | 9° | 27° | — | — |
| 1994 | 52° | 19° | 35° | — | — |
| 1993 | 45° | 12° | 28° | — | — |
| 1992 | 30° | 15° | 23° | — | — |
| 1991 | 52° | 12° | 32° | — | — |
| 1990 | 37° | -11° | 13° | — | — |
| 1989 | 46° | 11° | 28° | — | — |
| 1988 | 20° | -12° | 4° | — | — |
| 1987 | 37° | -1° | 18° | — | — |
| 1986 | 50° | 16° | 33° | — | — |
| 1985 | 42° | 13° | 27° | — | — |
| 1984 | 61° | 23° | 42° | — | — |
| 1983coldest | 11° | -20° | -5° | — | — |
| 1982 | 24° | -3° | 11° | — | — |
| 1981 | 36° | 3° | 19° | — | — |
| 1980 | 52° | 26° | 39° | — | — |
| 1979 | 36° | 11° | 23° | — | — |
| 1978 | 50° | 4° | 27° | — | — |
| 1977 | 48° | 14° | 31° | — | — |
| 1976 | 54° | 19° | 36° | — | — |
| 1975 | 36° | 15° | 25° | — | — |
| 1974 | 51° | 15° | 33° | — | — |
| 1973 | 48° | 12° | 30° | — | — |
| 1972 | 46° | 25° | 35° | 0.18" | 1" |
| 1971 | 52° | 15° | 33° | — | — |
55 years of data from LONGMONT 2 ESE