Weather on December 17
Fort Collins, CO
55 Years of Data
Avg High
44°F
Avg Low
17°F
Warmest
1980
52°F avg
Coldest
2016
6°F avg
About This Date
December 17th in Fort Collins, CO typically brings chilly winter weather, with average highs around 44°F and lows near 17°F — a 27°F daily swing. Over 55 years of records, the warmest December 17th was in 1980 (52°F average), while the coldest was 2016 (6°F) — a 46°F range across recorded history. Precipitation has occurred on 16% of recorded December 17th dates, with snow falling 16% of the time (heaviest snowfall: 4.5"). The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for December 17th in Fort Collins, 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 | 68° | 31° | 49° | 0.05" | — |
| 2024 | 52° | 23° | 37° | — | — |
| 2023 | 62° | 22° | 42° | — | — |
| 2022 | 36° | 9° | 22° | — | — |
| 2021 | 42° | 19° | 31° | — | — |
| 2020 | 44° | 14° | 29° | — | — |
| 2019 | 39° | 7° | 23° | — | — |
| 2018 | 59° | 17° | 38° | — | — |
| 2017 | 39° | 28° | 34° | — | — |
| 2016coldest | 16° | -4° | 6° | 0.51" | 2.4" |
| 2015 | 25° | 10° | 17° | — | — |
| 2014 | 42° | 18° | 30° | — | — |
| 2013 | 60° | 25° | 42° | — | — |
| 2012 | 52° | 20° | 36° | — | — |
| 2011 | 45° | 15° | 30° | — | — |
| 2010 | 32° | 20° | 26° | — | — |
| 2009 | 53° | 24° | 39° | — | — |
| 2008 | 37° | 7° | 22° | — | — |
| 2007 | 42° | 12° | 27° | — | — |
| 2006 | 35° | 23° | 29° | 0.15" | 0.9" |
| 2005 | 22° | 8° | 15° | 0.13" | 1.4" |
| 2004 | 49° | 18° | 33° | — | — |
| 2003 | 57° | 23° | 40° | — | — |
| 2002 | 49° | 31° | 40° | — | — |
| 2001 | 57° | 16° | 36° | — | — |
| 2000 | 57° | 13° | 35° | — | — |
| 1999 | 50° | 33° | 42° | — | — |
| 1998 | 57° | 22° | 39° | — | — |
| 1997 | 49° | 27° | 38° | — | — |
| 1996 | 19° | 10° | 15° | — | — |
| 1995 | 40° | 28° | 34° | — | — |
| 1994 | 53° | 23° | 38° | — | — |
| 1993 | 34° | 13° | 23° | — | — |
| 1992 | 27° | 10° | 18° | — | 0.1" |
| 1991 | 45° | 19° | 32° | — | — |
| 1990 | 38° | 24° | 31° | 0.1" | 1" |
| 1989 | 26° | 5° | 16° | 0.03" | 0.1" |
| 1988 | 43° | 11° | 27° | — | — |
| 1987 | 36° | 11° | 23° | — | — |
| 1986 | 38° | 18° | 28° | — | — |
| 1985 | 47° | 12° | 29° | — | — |
| 1984 | 23° | 14° | 19° | — | — |
| 1983 | 26° | 4° | 15° | 0.03" | 0.5" |
| 1982 | 65° | 23° | 44° | — | — |
| 1981 | 32° | 15° | 24° | 0.53" | 4" |
| 1980warmest | 73° | 31° | 52° | — | — |
| 1979 | 55° | 15° | 35° | — | — |
| 1978 | 35° | 7° | 21° | — | — |
| 1977 | 47° | 30° | 38° | — | — |
| 1976 | 65° | 18° | 41° | — | — |
| 1975 | 19° | 5° | 12° | 0.74" | 4.5" |
| 1974 | 50° | 17° | 34° | — | — |
| 1973 | 52° | 30° | 41° | — | — |
| 1972 | 46° | 12° | 29° | — | — |
| 1971 | 50° | 11° | 30° | — | — |
55 years of data from FT COLLINS