Weather on January 21
Fort Collins, CO
55 Years of Data
Avg High
45°F
Avg Low
18°F
Warmest
2005
48°F avg
Coldest
2008
9°F avg
About This Date
January 21st in Fort Collins, CO typically brings chilly winter weather, with average highs around 45°F and lows near 18°F — a 27°F daily swing. Over 56 years of records, the warmest January 21st was in 2005 (48°F average), while the coldest was 2008 (9°F) — a 39°F range across recorded history. Precipitation has occurred on 16% of recorded January 21st dates, with snow falling 16% of the time (heaviest snowfall: 3.9"). The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
Planning for January 21st in Fort Collins, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 47° | 16° | 31° | — | — |
| 2025 | 38° | -11° | 13° | — | — |
| 2024 | 46° | 21° | 34° | — | — |
| 2023 | 35° | 17° | 26° | — | — |
| 2022 | 41° | 19° | 30° | — | — |
| 2021 | 45° | 27° | 36° | — | — |
| 2020 | 48° | 28° | 38° | — | — |
| 2019 | 49° | 21° | 35° | — | — |
| 2018 | 34° | 25° | 29° | 0.97" | 3.9" |
| 2017 | 44° | 20° | 32° | — | — |
| 2016 | 46° | 30° | 38° | — | — |
| 2015 | 36° | 27° | 31° | — | 0.2" |
| 2014 | 65° | 16° | 40° | — | — |
| 2013 | 54° | 14° | 34° | — | — |
| 2012 | 57° | 23° | 40° | — | — |
| 2011 | 50° | 22° | 36° | — | — |
| 2010 | 42° | 19° | 31° | — | — |
| 2009 | 67° | 20° | 43° | — | — |
| 2008coldest | 16° | 3° | 9° | 0.08" | 0.7" |
| 2007 | 33° | 21° | 27° | 0.23" | 1.4" |
| 2006 | 44° | 11° | 27° | — | — |
| 2005warmest | 65° | 31° | 48° | — | — |
| 2004 | 45° | 19° | 32° | — | — |
| 2003 | 50° | 22° | 36° | — | — |
| 2002 | 51° | 22° | 36° | — | — |
| 2001 | 45° | 14° | 29° | — | — |
| 2000 | 49° | 26° | 37° | 0.03" | — |
| 1999 | 46° | 26° | 36° | 0.28" | 1" |
| 1998 | 38° | 15° | 26° | — | — |
| 1997 | 51° | 32° | 42° | — | — |
| 1996 | 54° | 15° | 34° | — | — |
| 1995 | 46° | 11° | 28° | — | — |
| 1994 | 58° | 16° | 37° | — | — |
| 1993 | 51° | 29° | 40° | — | — |
| 1992 | 49° | 18° | 33° | — | — |
| 1991 | 29° | 4° | 16° | — | — |
| 1990 | 49° | 10° | 29° | — | — |
| 1989 | 57° | 20° | 38° | — | — |
| 1988 | 34° | 9° | 21° | — | — |
| 1987 | 34° | 7° | 20° | — | — |
| 1986 | 50° | 29° | 39° | — | — |
| 1985 | 17° | 10° | 14° | 0.1" | 0.6" |
| 1984 | 40° | -2° | 19° | — | — |
| 1983 | 31° | 25° | 28° | — | — |
| 1982 | 29° | 15° | 22° | 0.03" | 0.2" |
| 1981 | 56° | 14° | 35° | — | — |
| 1980 | 44° | 5° | 25° | — | — |
| 1979 | 46° | 18° | 32° | — | — |
| 1978 | 35° | 4° | 19° | — | — |
| 1977 | 43° | 13° | 28° | — | — |
| 1976 | 53° | 20° | 36° | — | — |
| 1975 | 49° | 18° | 33° | 0.1" | 0.9" |
| 1974 | 39° | 23° | 31° | — | — |
| 1973 | 41° | 13° | 27° | 0.08" | 0.5" |
| 1972 | 52° | 24° | 38° | — | — |
| 1971 | 49° | 28° | 38° | — | — |
56 years of data from FT COLLINS