Weather on December 5
Longmont, CO
55 Years of Data
Avg High
48°F
Avg Low
19°F
Warmest
2012
54°F avg
Coldest
2013
1°F avg
About This Date
December 5th in Longmont, CO typically brings chilly winter weather, with average highs around 48°F and lows near 19°F — a 29°F daily swing. Over 55 years of records, the warmest December 5th was in 2012 (54°F average), while the coldest was 2013 (1°F) — a 53°F range across recorded history. Precipitation has occurred on 9% of recorded December 5th dates, with snow falling 7% of the time (heaviest snowfall: 7"). The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.
Planning for December 5th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 30° | 11° | 20° | — | — |
| 2024 | 59° | 24° | 42° | — | — |
| 2023 | 60° | 24° | 42° | — | — |
| 2022 | 55° | 28° | 42° | — | — |
| 2021 | 60° | 27° | 43° | — | — |
| 2020 | 61° | 23° | 42° | — | — |
| 2019 | 49° | 28° | 38° | — | — |
| 2018 | 41° | 13° | 27° | — | — |
| 2017 | 42° | 14° | 28° | — | — |
| 2016 | 54° | 31° | 42° | — | — |
| 2015 | 52° | 33° | 42° | — | — |
| 2014 | 57° | 35° | 46° | — | — |
| 2013coldest | 10° | -9° | 1° | 0.03" | 0.1" |
| 2012warmest | 71° | 37° | 54° | — | — |
| 2011 | 21° | 1° | 11° | 0.15" | 1.4" |
| 2010 | 43° | 21° | 32° | — | — |
| 2009 | 38° | 15° | 26° | — | — |
| 2008 | 46° | 0° | 23° | — | — |
| 2007 | 59° | 37° | 48° | — | — |
| 2006 | 54° | 33° | 43° | — | — |
| 2005 | 32° | 16° | 24° | — | — |
| 2004 | 48° | 28° | 38° | — | — |
| 2003 | 39° | 13° | 26° | — | — |
| 2002 | 33° | 27° | 30° | — | — |
| 2001 | 46° | 18° | 32° | — | — |
| 2000 | 43° | 13° | 28° | — | — |
| 1999 | 43° | 14° | 28° | — | — |
| 1998 | 64° | 22° | 43° | — | — |
| 1997 | 36° | 8° | 22° | — | — |
| 1996 | 46° | 15° | 31° | — | — |
| 1995 | 65° | 20° | 42° | — | — |
| 1994 | 63° | 21° | 42° | — | — |
| 1993 | 55° | 21° | 38° | — | — |
| 1992 | 25° | -2° | 11° | — | — |
| 1991 | 48° | 17° | 33° | — | — |
| 1990 | 56° | 18° | 37° | — | — |
| 1989 | 65° | 27° | 46° | — | — |
| 1988 | 59° | 11° | 35° | — | — |
| 1987 | 52° | 32° | 42° | — | — |
| 1986 | 36° | 14° | 25° | — | — |
| 1985 | 43° | 14° | 28° | — | — |
| 1984 | 34° | 10° | 22° | — | — |
| 1983 | 53° | 14° | 34° | 0.03" | — |
| 1982 | 51° | 21° | 36° | — | — |
| 1981 | 52° | 17° | 34° | — | — |
| 1980 | 70° | 27° | 48° | — | — |
| 1979 | 67° | 34° | 50° | — | — |
| 1978 | 57° | 20° | 38° | — | — |
| 1977 | 57° | 21° | 39° | 0.13" | 1" |
| 1976 | 42° | 18° | 30° | — | — |
| 1975 | 63° | 28° | 45° | — | — |
| 1974 | 60° | 25° | 42° | — | — |
| 1973 | 42° | 16° | 29° | — | — |
| 1972 | 18° | -6° | 6° | 1.3" | 7" |
| 1971 | 39° | 9° | 24° | — | — |
55 years of data from LONGMONT 2 ESE