Weather on December 1
Fort Collins, CO
55 Years of Data
Avg High
46°F
Avg Low
20°F
Warmest
2021
52°F avg
Coldest
1985
1°F avg
About This Date
December 1st in Fort Collins, CO typically brings chilly winter weather, with average highs around 46°F and lows near 20°F — a 26°F daily swing. Over 54 years of records, the warmest December 1st was in 2021 (52°F average), while the coldest was 1985 (1°F) — a 51°F range across recorded history. Precipitation has occurred on 6% of recorded December 1st dates, with snow falling 6% of the time (heaviest snowfall: 4.9"). The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for December 1st in Fort Collins, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 43° | 11° | 27° | — | — |
| 2024 | 51° | 21° | 36° | — | — |
| 2023 | 35° | 20° | 27° | — | — |
| 2022 | 54° | 11° | 32° | — | — |
| 2021warmest | 72° | 33° | 52° | — | — |
| 2020 | 43° | 28° | 35° | — | — |
| 2019 | 35° | 10° | 23° | — | — |
| 2018 | 46° | 25° | 35° | — | — |
| 2017 | 56° | 26° | 41° | — | — |
| 2016 | 42° | 15° | 29° | — | — |
| 2015 | 43° | 16° | 29° | — | — |
| 2014 | 37° | 19° | 28° | — | — |
| 2013 | 56° | 26° | 41° | — | — |
| 2012 | 60° | 31° | 45° | — | — |
| 2011 | 48° | 21° | 35° | 0.81" | 4.9" |
| 2010 | 56° | 22° | 39° | — | — |
| 2009 | 42° | 22° | 32° | — | — |
| 2008 | 48° | 24° | 36° | — | — |
| 2007 | 37° | 21° | 29° | — | — |
| 2006 | 34° | 13° | 23° | — | — |
| 2005 | 36° | 17° | 26° | — | — |
| 2004 | 34° | 12° | 23° | — | — |
| 2003 | 45° | 28° | 36° | — | — |
| 2002 | 55° | 27° | 41° | — | — |
| 2001 | 42° | 18° | 30° | — | — |
| 2000 | 44° | 20° | 32° | — | — |
| 1999 | 61° | 34° | 47° | — | — |
| 1998 | 66° | 31° | 48° | — | — |
| 1997 | 46° | 26° | 36° | — | — |
| 1996 | 50° | 18° | 34° | — | — |
| 1995 | 60° | 32° | 46° | — | — |
| 1994 | 64° | 24° | 44° | — | — |
| 1993 | 46° | 27° | 36° | — | — |
| 1992 | 48° | 26° | 37° | — | — |
| 1991 | 28° | 7° | 17° | — | — |
| 1990 | 47° | 26° | 36° | — | — |
| 1989 | 53° | 16° | 34° | — | — |
| 1988 | 58° | 19° | 38° | — | — |
| 1987 | 44° | 15° | 30° | — | — |
| 1986 | 40° | 25° | 32° | — | — |
| 1985coldest | 7° | -5° | 1° | — | — |
| 1984 | 39° | 22° | 30° | — | — |
| 1983 | 37° | 2° | 19° | — | — |
| 1981 | 43° | 15° | 29° | — | — |
| 1980 | 50° | 18° | 34° | 0.03" | 0.5" |
| 1979 | 39° | 8° | 24° | — | — |
| 1978 | 49° | 22° | 35° | — | — |
| 1977 | 37° | 24° | 31° | — | — |
| 1976 | 49° | 18° | 33° | — | — |
| 1975 | 60° | 19° | 40° | — | — |
| 1974 | 47° | 9° | 28° | — | — |
| 1973 | 56° | 23° | 39° | — | — |
| 1972 | 53° | 36° | 44° | — | — |
| 1971 | 30° | 24° | 27° | 0.13" | 1.5" |
54 years of data from FT COLLINS