Weather on January 9
Longmont, CO
55 Years of Data
Avg High
43°F
Avg Low
16°F
Warmest
2002
47°F avg
Coldest
1973
0°F avg
About This Date
January 9th in Longmont, CO typically brings chilly winter weather, with average highs around 43°F and lows near 16°F — a 27°F daily swing. Over 56 years of records, the warmest January 9th was in 2002 (47°F average), while the coldest was 1973 (0°F) — a 47°F range across recorded history. Precipitation has occurred on 14% of recorded January 9th dates, with snow falling 14% of the time (heaviest snowfall: 3.7"). The last decade has been 6.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.7°F cooler on this date compared to 20-30 years ago.
Planning for January 9th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
2.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 36° | 24° | 30° | 0.18" | 0.8" |
| 2025 | 35° | 3° | 19° | — | — |
| 2024 | 33° | 8° | 21° | — | — |
| 2023 | 45° | 19° | 32° | — | — |
| 2022 | 45° | 22° | 33° | — | — |
| 2021 | 47° | 19° | 33° | — | — |
| 2020 | 58° | 27° | 42° | — | — |
| 2019 | 49° | 19° | 34° | — | — |
| 2018 | 45° | 24° | 34° | — | — |
| 2017 | 54° | 13° | 33° | — | — |
| 2016 | 32° | 11° | 21° | — | — |
| 2015 | 35° | 17° | 26° | 0.3" | 1.1" |
| 2014 | 47° | 19° | 33° | — | — |
| 2013 | 57° | 25° | 41° | — | — |
| 2012 | 52° | 22° | 37° | — | — |
| 2011 | 38° | 21° | 29° | 0.76" | 3.7" |
| 2010 | 49° | 15° | 32° | — | — |
| 2009 | 55° | 36° | 45° | — | — |
| 2008 | 38° | 23° | 30° | 0.08" | 0.7" |
| 2007 | 52° | 22° | 37° | — | — |
| 2006 | 46° | 21° | 34° | — | — |
| 2005 | 57° | 37° | 47° | — | — |
| 2004 | 53° | 23° | 38° | — | — |
| 2003 | 68° | 24° | 46° | — | — |
| 2002warmest | 67° | 27° | 47° | — | — |
| 2001 | 55° | 5° | 30° | — | — |
| 2000 | 52° | 27° | 39° | — | — |
| 1999 | 34° | 14° | 24° | — | — |
| 1998 | 48° | 7° | 27° | — | — |
| 1997 | 41° | 14° | 28° | — | — |
| 1996 | 62° | 24° | 43° | — | — |
| 1995 | 57° | 25° | 41° | — | — |
| 1994 | 48° | 11° | 29° | — | — |
| 1993 | 22° | 4° | 13° | — | 2.2" |
| 1992 | 38° | 8° | 23° | — | — |
| 1991 | 42° | 17° | 30° | — | — |
| 1990 | 58° | 32° | 45° | — | — |
| 1989 | 37° | 12° | 25° | — | — |
| 1988 | 26° | -4° | 11° | 0.13" | — |
| 1987 | 34° | 14° | 24° | — | — |
| 1986 | 54° | 19° | 36° | — | — |
| 1985 | 29° | 18° | 23° | 0.13" | 2" |
| 1984 | 53° | 20° | 36° | — | — |
| 1983 | 52° | 32° | 42° | — | — |
| 1982 | 49° | 8° | 28° | — | — |
| 1981 | 52° | 18° | 35° | — | — |
| 1980 | 22° | 5° | 13° | 0.18" | 0.7" |
| 1979 | 28° | -3° | 13° | — | — |
| 1978 | 38° | 10° | 24° | — | — |
| 1977 | 11° | -7° | 2° | 0.05" | 0.3" |
| 1976 | 25° | 1° | 13° | — | — |
| 1975 | 41° | 15° | 28° | — | — |
| 1974 | 11° | -12° | 0° | — | — |
| 1973coldest | 10° | -11° | 0° | — | — |
| 1972 | 53° | 28° | 41° | — | — |
| 1971 | 39° | 1° | 20° | — | — |
56 years of data from LONGMONT 2 ESE