Weather on January 21
Denver, CO
55 Years of Data
Avg High
45°F
Avg Low
19°F
Warmest
2005
52°F avg
Coldest
2025
3°F avg
About This Date
January 21st in Denver, CO typically brings chilly winter weather, with average highs around 45°F and lows near 19°F — a 26°F daily swing. Over 56 years of records, the warmest January 21st was in 2005 (52°F average), while the coldest was 2025 (3°F) — a 49°F range across recorded history. Precipitation has occurred on 20% of recorded January 21st dates, with snow falling 18% of the time (heaviest snowfall: 4.6"). The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
Planning for January 21st in Denver, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 52° | 18° | 35° | — | — |
| 2025coldest | 10° | -4° | 3° | — | — |
| 2024 | 39° | 18° | 28° | — | — |
| 2023 | 27° | 9° | 18° | — | — |
| 2022 | 33° | 21° | 27° | 0.15" | — |
| 2021 | 60° | 24° | 42° | — | — |
| 2020 | 53° | 19° | 36° | — | — |
| 2019 | 58° | 27° | 42° | — | — |
| 2018 | 45° | 24° | 34° | 0.25" | 2" |
| 2017 | 46° | 21° | 34° | — | — |
| 2016 | 50° | 28° | 39° | — | — |
| 2015 | 42° | 27° | 34° | — | — |
| 2014 | 47° | 22° | 34° | — | — |
| 2013 | 48° | 13° | 30° | — | — |
| 2012 | 56° | 26° | 41° | — | — |
| 2011 | 42° | 11° | 26° | — | — |
| 2010 | 37° | 22° | 29° | — | — |
| 2009 | 68° | 34° | 51° | — | — |
| 2008 | 44° | 9° | 26° | — | — |
| 2007 | 32° | 12° | 22° | 0.08" | 0.5" |
| 2006 | 39° | 16° | 27° | — | — |
| 2005warmest | 72° | 32° | 52° | — | — |
| 2004 | 31° | 17° | 24° | 0.23" | 1.3" |
| 2003 | 65° | 18° | 41° | — | — |
| 2002 | 37° | 17° | 27° | — | — |
| 2001 | 42° | 19° | 31° | — | — |
| 2000 | 58° | 20° | 39° | — | — |
| 1999 | 43° | 27° | 35° | 1.02" | 2.5" |
| 1998 | 36° | 16° | 26° | — | — |
| 1997 | 47° | 28° | 37° | — | — |
| 1996 | 54° | 24° | 39° | — | — |
| 1995 | 45° | 15° | 30° | — | — |
| 1994 | 61° | 18° | 39° | — | — |
| 1993 | 54° | 32° | 43° | — | — |
| 1992 | 54° | 15° | 34° | — | — |
| 1991 | 32° | 6° | 19° | — | — |
| 1990 | 56° | 22° | 39° | — | — |
| 1989 | 60° | 24° | 42° | — | — |
| 1988 | 30° | 14° | 22° | — | — |
| 1987 | 37° | 6° | 22° | — | — |
| 1986 | 43° | 23° | 33° | — | — |
| 1985 | 18° | 11° | 14° | 0.03" | 0.4" |
| 1984 | 37° | 14° | 26° | — | — |
| 1983 | 29° | 24° | 26° | 0.1" | 0.2" |
| 1982 | 33° | 19° | 26° | — | — |
| 1981 | 56° | 23° | 39° | — | — |
| 1980 | 40° | 10° | 25° | 0.05" | 0.2" |
| 1979 | 54° | 23° | 38° | — | — |
| 1978 | 43° | 16° | 29° | — | — |
| 1977 | 50° | 21° | 36° | — | — |
| 1976 | 52° | 22° | 37° | — | — |
| 1975 | 31° | 10° | 20° | 0.36" | 2.5" |
| 1974 | 35° | 19° | 27° | 1.17" | 4.6" |
| 1973 | 37° | 12° | 25° | 0.13" | 0.6" |
| 1972 | 56° | 32° | 44° | — | — |
| 1971 | 55° | 28° | 42° | — | — |
56 years of data from DENVER-STAPLETON