Weather on February 9
Boulder, CO
55 Years of Data
Avg High
47°F
Avg Low
21°F
Warmest
1976
58°F avg
Coldest
2011
7°F avg
About This Date
February 9th 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 February 9th was in 1976 (58°F average), while the coldest was 2011 (7°F) — a 51°F range across recorded history. Precipitation has occurred on 14% of recorded February 9th dates, with snow falling 16% of the time (heaviest snowfall: 2"). The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for February 9th in Boulder, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 72° | 37° | 54° | — | — |
| 2025 | 41° | 23° | 32° | — | — |
| 2024 | 43° | 28° | 36° | — | — |
| 2023 | 34° | 21° | 28° | — | — |
| 2022 | 54° | 36° | 45° | — | — |
| 2021 | 30° | 10° | 20° | — | — |
| 2020 | 36° | 18° | 27° | — | — |
| 2019 | 34° | 12° | 23° | — | — |
| 2018 | 52° | 12° | 32° | — | — |
| 2017 | 68° | 45° | 56° | — | — |
| 2016 | 57° | 28° | 43° | — | — |
| 2015 | 70° | 32° | 51° | — | — |
| 2014 | 46° | 17° | 32° | 0.2" | 1.1" |
| 2013 | 41° | 23° | 32° | 0.03" | 0.1" |
| 2012 | 46° | 20° | 33° | — | — |
| 2011coldest | 22° | -7° | 7° | — | 0.1" |
| 2010 | 30° | 1° | 16° | 0.03" | 0.3" |
| 2009 | 49° | 30° | 39° | — | — |
| 2008 | 52° | 30° | 41° | — | — |
| 2007 | 47° | 23° | 35° | — | — |
| 2006 | 56° | 32° | 44° | — | — |
| 2005 | 46° | 18° | 32° | — | — |
| 2004 | 41° | 14° | 28° | — | — |
| 2003 | 37° | 17° | 27° | 0.1" | 1" |
| 2002 | 36° | 30° | 33° | — | — |
| 2001 | 25° | -5° | 10° | 0.1" | 1.2" |
| 2000 | 57° | 37° | 47° | — | — |
| 1999 | 60° | 26° | 43° | — | — |
| 1998 | 45° | 30° | 37° | — | — |
| 1997 | 44° | 16° | 30° | — | — |
| 1996 | 70° | 43° | 56° | — | — |
| 1995 | 52° | 22° | 37° | — | — |
| 1994 | 32° | -1° | 16° | 0.05" | 0.5" |
| 1993 | 50° | 28° | 39° | — | — |
| 1992 | 53° | 25° | 39° | — | — |
| 1991 | 53° | 30° | 42° | — | — |
| 1990 | 47° | 22° | 34° | — | — |
| 1989 | 43° | -1° | 21° | — | — |
| 1988 | 54° | 22° | 38° | — | — |
| 1987 | 64° | 28° | 46° | — | — |
| 1986 | 16° | 2° | 9° | 0.15" | 2" |
| 1985 | 43° | 22° | 32° | 0.18" | 1.1" |
| 1984 | 48° | 22° | 35° | — | — |
| 1983 | 39° | 19° | 29° | — | — |
| 1982 | 25° | -4° | 10° | — | — |
| 1981 | 42° | 18° | 30° | — | — |
| 1980 | 49° | 8° | 28° | — | — |
| 1979 | 55° | 20° | 37° | — | — |
| 1978 | 38° | 20° | 29° | — | — |
| 1977 | 59° | 27° | 43° | — | — |
| 1976warmest | 69° | 47° | 58° | — | — |
| 1975 | 55° | 2° | 28° | — | — |
| 1974 | 53° | 25° | 39° | — | — |
| 1973 | 39° | 11° | 25° | — | — |
| 1972 | 48° | 26° | 37° | — | — |
| 1971 | 51° | 12° | 32° | — | — |
56 years of data from BOULDER MUNI AP