Weather on January 17
Boulder, CO
55 Years of Data
Avg High
47°F
Avg Low
21°F
Warmest
1974
52°F avg
Coldest
1984
8°F avg
About This Date
January 17th in Boulder, CO typically brings chilly winter weather, with average highs around 47°F and lows near 21°F — a 26°F daily swing. Over 56 years of records, the warmest January 17th was in 1974 (52°F average), while the coldest was 1984 (8°F) — a 44°F range across recorded history. Precipitation has occurred on 9% of recorded January 17th dates, with snow falling 9% of the time (heaviest snowfall: 4.7"). The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for January 17th in Boulder, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 41° | 19° | 30° | — | — |
| 2025 | 52° | 19° | 35° | — | — |
| 2024 | 45° | 21° | 33° | — | — |
| 2023 | 36° | 27° | 32° | — | — |
| 2022 | 46° | 27° | 37° | — | — |
| 2021 | 50° | 30° | 40° | — | — |
| 2020 | 52° | 23° | 38° | — | — |
| 2019 | 54° | 37° | 45° | — | — |
| 2018 | 52° | 14° | 33° | — | — |
| 2017 | 49° | 22° | 35° | — | — |
| 2016 | 40° | 16° | 28° | — | — |
| 2015 | 58° | 37° | 47° | — | — |
| 2014 | 56° | 21° | 38° | — | — |
| 2013 | 52° | 21° | 36° | — | — |
| 2012 | 32° | 6° | 19° | 0.1" | 0.9" |
| 2011 | 55° | 41° | 48° | 0.03" | — |
| 2010 | 56° | 36° | 46° | — | — |
| 2009 | 59° | 32° | 46° | — | — |
| 2008 | 26° | 2° | 14° | — | — |
| 2007 | 41° | 11° | 26° | — | — |
| 2006 | 49° | 24° | 36° | — | — |
| 2005 | 49° | 25° | 37° | — | — |
| 2004 | 46° | 26° | 36° | — | — |
| 2003 | 44° | 19° | 32° | — | — |
| 2002 | 32° | 11° | 21° | — | — |
| 2001 | 33° | 2° | 17° | 0.03" | 0.3" |
| 2000 | 64° | 30° | 47° | — | — |
| 1999 | 47° | 29° | 38° | — | — |
| 1998 | 53° | 32° | 43° | — | — |
| 1997 | 36° | 1° | 18° | — | — |
| 1996 | 53° | 7° | 30° | 0.64" | 4.7" |
| 1995 | 42° | 18° | 30° | — | — |
| 1994 | 36° | 16° | 26° | — | — |
| 1993 | 32° | 21° | 27° | — | — |
| 1992 | 48° | 21° | 35° | — | — |
| 1991 | 38° | 18° | 28° | — | — |
| 1990 | 50° | 12° | 31° | — | — |
| 1989 | 56° | 32° | 44° | — | — |
| 1988 | 47° | 17° | 32° | — | — |
| 1987 | 29° | -4° | 12° | — | 0.2" |
| 1986 | 61° | 33° | 47° | — | — |
| 1985 | 59° | 21° | 40° | — | — |
| 1984coldest | 21° | -5° | 8° | 0.46" | 2.7" |
| 1983 | 45° | 19° | 32° | — | — |
| 1982 | 57° | 18° | 37° | — | — |
| 1981 | 32° | 11° | 21° | — | — |
| 1980 | 48° | 25° | 36° | — | — |
| 1979 | 41° | 21° | 31° | — | — |
| 1978 | 44° | 0° | 22° | — | — |
| 1977 | 48° | 18° | 33° | — | — |
| 1976 | 59° | 35° | 47° | — | — |
| 1975 | 56° | 24° | 40° | — | — |
| 1974warmest | 67° | 38° | 52° | — | — |
| 1973 | 53° | 37° | 45° | — | — |
| 1972 | 57° | 30° | 44° | — | — |
| 1971 | 62° | 29° | 45° | — | — |
56 years of data from BOULDER MUNI AP