Weather on December 16
Longmont, CO
55 Years of Data
Avg High
45°F
Avg Low
16°F
Warmest
2013
51°F avg
Coldest
1972
7°F avg
About This Date
December 16th in Longmont, CO typically brings chilly winter weather, with average highs around 45°F and lows near 16°F — a 29°F daily swing. Over 55 years of records, the warmest December 16th was in 2013 (51°F average), while the coldest was 1972 (7°F) — a 44°F range across recorded history. Precipitation has occurred on 7% of recorded December 16th dates, with snow falling 2% of the time. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for December 16th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 29° | 47° | — | — |
| 2024 | 53° | 24° | 39° | — | — |
| 2023 | 54° | 22° | 38° | — | — |
| 2022 | 33° | 11° | 22° | — | — |
| 2021 | 47° | 20° | 33° | — | — |
| 2020 | 37° | 15° | 26° | — | — |
| 2019 | 34° | 19° | 26° | — | — |
| 2018 | 47° | 23° | 35° | — | — |
| 2017 | 62° | 18° | 40° | — | — |
| 2016 | 59° | 25° | 42° | — | — |
| 2015 | 36° | 15° | 25° | — | — |
| 2014 | 37° | 17° | 27° | — | — |
| 2013warmest | 62° | 40° | 51° | — | — |
| 2012 | 41° | 24° | 33° | — | — |
| 2011 | 39° | 19° | 29° | — | — |
| 2010 | 38° | 19° | 28° | — | — |
| 2009 | 54° | 42° | 48° | — | — |
| 2008 | 38° | -7° | 15° | — | — |
| 2007 | 47° | 13° | 30° | — | — |
| 2006 | 60° | 34° | 47° | — | — |
| 2005 | 34° | 8° | 21° | — | — |
| 2004 | 46° | 25° | 35° | 0.15" | 0.4" |
| 2003 | 36° | 9° | 22° | — | — |
| 2002 | 62° | 26° | 44° | — | — |
| 2001 | 43° | 9° | 26° | 0.36" | — |
| 2000 | 49° | 8° | 28° | — | — |
| 1999 | 49° | 22° | 35° | — | — |
| 1998 | 44° | 17° | 31° | — | — |
| 1997 | 59° | 15° | 37° | — | — |
| 1996 | 46° | 16° | 31° | — | — |
| 1995 | 59° | 17° | 38° | — | — |
| 1994 | 47° | 11° | 29° | — | — |
| 1993 | 39° | 15° | 27° | 0.13" | — |
| 1992 | 39° | 12° | 26° | 0.18" | — |
| 1991 | 47° | 19° | 33° | — | — |
| 1990 | 44° | 20° | 32° | — | — |
| 1989 | 17° | 0° | 9° | — | — |
| 1988 | 22° | -7° | 7° | — | — |
| 1987 | 26° | -6° | 10° | — | — |
| 1986 | 46° | 16° | 31° | — | — |
| 1985 | 36° | 8° | 22° | — | — |
| 1984 | 37° | 10° | 24° | — | — |
| 1983 | 29° | 10° | 19° | — | — |
| 1982 | 47° | 19° | 33° | — | — |
| 1981 | 46° | 24° | 35° | — | — |
| 1980 | 64° | 27° | 45° | — | — |
| 1979 | 63° | 8° | 35° | — | — |
| 1978 | 51° | 16° | 33° | — | — |
| 1977 | 65° | 31° | 48° | — | — |
| 1976 | 53° | 20° | 36° | — | — |
| 1975 | 51° | 10° | 31° | — | — |
| 1974 | 42° | 13° | 27° | — | — |
| 1973 | 47° | 19° | 33° | — | — |
| 1972coldest | 24° | -11° | 7° | — | — |
| 1971 | 39° | 13° | 26° | — | — |
55 years of data from LONGMONT 2 ESE