Weather on December 8
Longmont, CO
55 Years of Data
Avg High
45°F
Avg Low
17°F
Warmest
2015
53°F avg
Coldest
1978
-7°F avg
About This Date
December 8th in Longmont, CO typically brings chilly winter weather, with average highs around 45°F and lows near 17°F — a 28°F daily swing. Over 55 years of records, the warmest December 8th was in 2015 (53°F average), while the coldest was 1978 (-7°F) — a 60°F range across recorded history. Precipitation has occurred on 15% of recorded December 8th dates, with snow falling 15% of the time (heaviest snowfall: 6"). The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for December 8th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
2.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 49° | 26° | 37° | — | — |
| 2024 | 59° | 24° | 42° | — | — |
| 2023 | 61° | 32° | 46° | — | — |
| 2022 | 50° | 23° | 37° | — | — |
| 2021 | 56° | 22° | 39° | — | — |
| 2020 | 63° | 21° | 42° | — | — |
| 2019 | 58° | 26° | 42° | — | — |
| 2018 | 41° | 16° | 28° | — | — |
| 2017 | 50° | 13° | 31° | — | — |
| 2016 | 20° | -3° | 9° | — | — |
| 2015warmest | 59° | 47° | 53° | — | — |
| 2014 | 53° | 27° | 40° | — | — |
| 2013 | 21° | -3° | 9° | — | 0.1" |
| 2012 | 49° | 23° | 36° | — | — |
| 2011 | 40° | 23° | 31° | — | — |
| 2010 | 57° | 24° | 41° | — | — |
| 2009 | 7° | 2° | 4° | 0.15" | 1.4" |
| 2008 | 60° | 30° | 45° | 0.25" | 0.7" |
| 2007 | 29° | 15° | 22° | 1.02" | 4.3" |
| 2006 | 59° | 27° | 43° | — | — |
| 2005 | 26° | -8° | 9° | — | — |
| 2004 | 52° | 30° | 41° | — | — |
| 2003 | 64° | 15° | 40° | — | — |
| 2002 | 49° | 19° | 34° | — | — |
| 2001 | 48° | 10° | 29° | — | — |
| 2000 | 55° | 18° | 36° | — | — |
| 1999 | 54° | 22° | 38° | — | — |
| 1998 | 41° | 5° | 23° | — | — |
| 1997 | 38° | 13° | 25° | — | — |
| 1996 | 54° | 46° | 50° | — | — |
| 1995 | 50° | 6° | 28° | — | — |
| 1994 | 39° | 14° | 27° | — | — |
| 1993 | 54° | 18° | 36° | — | — |
| 1992 | 36° | 1° | 18° | — | — |
| 1991 | 58° | 28° | 43° | — | — |
| 1990 | 54° | 20° | 37° | — | — |
| 1989 | 39° | 10° | 25° | — | — |
| 1988 | 56° | 3° | 29° | 1.37" | 6" |
| 1987 | 63° | 30° | 46° | — | — |
| 1986 | 34° | 15° | 24° | — | — |
| 1985 | 32° | 24° | 28° | 1.42" | 5" |
| 1984 | 69° | 17° | 43° | — | — |
| 1983 | 50° | 16° | 33° | — | — |
| 1982 | 24° | 14° | 19° | 0.25" | 2.5" |
| 1981 | 64° | 24° | 44° | — | — |
| 1980 | 31° | 19° | 25° | — | — |
| 1979 | 31° | 24° | 27° | — | — |
| 1978coldest | 5° | -20° | -7° | — | — |
| 1977 | 61° | 19° | 40° | — | — |
| 1976 | 55° | 18° | 36° | — | — |
| 1975 | 48° | 28° | 38° | — | — |
| 1974 | 35° | 12° | 24° | 0.08" | — |
| 1973 | 51° | 20° | 35° | — | — |
| 1972 | 13° | -9° | 2° | — | — |
| 1971 | 18° | -1° | 9° | 0.05" | 1" |
55 years of data from LONGMONT 2 ESE