Weather on December 19
Fort Collins, CO
55 Years of Data
Avg High
43°F
Avg Low
16°F
Warmest
2025
49°F avg
Coldest
1989
5°F avg
About This Date
December 19th in Fort Collins, 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 19th was in 2025 (49°F average), while the coldest was 1989 (5°F) — a 44°F range across recorded history. Precipitation has occurred on 13% of recorded December 19th dates, with snow falling 16% of the time (heaviest snowfall: 2.4"). The last decade has been 9.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 9.0°F warmer on this date compared to 20-30 years ago.
Planning for December 19th in Fort Collins, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 71° | 26° | 49° | — | — |
| 2024 | 63° | 30° | 46° | — | — |
| 2023 | 62° | 21° | 42° | — | — |
| 2022 | 48° | 11° | 29° | — | — |
| 2021 | 56° | 14° | 35° | — | — |
| 2020 | 47° | 15° | 31° | — | — |
| 2019 | 45° | 19° | 32° | — | — |
| 2018 | 50° | 32° | 41° | — | — |
| 2017 | 49° | 23° | 36° | — | — |
| 2016 | 38° | 0° | 19° | — | — |
| 2015 | 50° | 15° | 33° | — | — |
| 2014 | 47° | 17° | 32° | — | — |
| 2013 | 42° | 20° | 31° | — | — |
| 2012 | 28° | 16° | 22° | 0.28" | 2.4" |
| 2011 | 39° | 27° | 33° | — | 0.1" |
| 2010 | 51° | 21° | 36° | — | — |
| 2009 | 44° | 12° | 28° | — | — |
| 2008 | 44° | 18° | 31° | — | — |
| 2007 | 52° | 20° | 36° | — | — |
| 2006 | 37° | 12° | 25° | — | — |
| 2005 | 34° | 7° | 20° | — | — |
| 2004 | 58° | 19° | 38° | — | — |
| 2003 | 54° | 16° | 35° | — | — |
| 2002 | 37° | 20° | 28° | — | — |
| 2001 | 49° | 15° | 32° | — | — |
| 2000 | 50° | 15° | 33° | — | — |
| 1999 | 43° | 16° | 29° | — | — |
| 1998 | 12° | 0° | 6° | 0.18" | 1.7" |
| 1997 | 37° | 24° | 31° | — | — |
| 1996 | 32° | 4° | 18° | — | — |
| 1995 | 36° | 16° | 26° | — | — |
| 1994 | 47° | 28° | 37° | — | — |
| 1993 | 31° | 17° | 24° | 0.05" | 0.8" |
| 1992 | 24° | 11° | 17° | — | 0.1" |
| 1991 | 40° | 23° | 31° | — | 0.1" |
| 1990 | 33° | -3° | 15° | 0.1" | 2.4" |
| 1989coldest | 18° | -7° | 5° | — | — |
| 1988 | 48° | 19° | 34° | — | — |
| 1987 | 35° | 14° | 25° | 0.08" | 0.8" |
| 1986 | 45° | 16° | 30° | — | — |
| 1985 | 47° | 16° | 31° | — | — |
| 1984 | 41° | 13° | 27° | — | — |
| 1983 | 16° | -1° | 8° | — | — |
| 1982 | 57° | 16° | 36° | — | — |
| 1981 | 38° | 23° | 30° | — | — |
| 1980 | 28° | 15° | 22° | 0.15" | — |
| 1979 | 54° | 19° | 36° | — | — |
| 1978 | 48° | 28° | 38° | — | — |
| 1977 | 40° | 25° | 32° | — | — |
| 1976 | 41° | 25° | 33° | — | — |
| 1975 | 46° | 4° | 25° | — | — |
| 1974 | 40° | 30° | 35° | — | — |
| 1973 | 26° | 8° | 17° | 0.03" | 0.5" |
| 1972 | 49° | 20° | 34° | — | — |
| 1971 | 43° | 26° | 34° | — | — |
55 years of data from FT COLLINS