Weather on October 9
Longmont, CO
55 Years of Data
Avg High
68°F
Avg Low
37°F
Warmest
2020
63°F avg
Coldest
1985
32°F avg
About This Date
October 9th in Longmont, CO typically brings mild fall weather, with average highs around 68°F and lows near 37°F — a 31°F daily swing. Over 55 years of records, the warmest October 9th was in 2020 (63°F average), while the coldest was 1985 (32°F) — a 31°F range across recorded history. Precipitation has occurred on 18% of recorded October 9th dates, with snow falling 2% of the time. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for October 9th in Longmont, CO? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 39° | 55° | — | — |
| 2024 | 83° | 43° | 63° | — | — |
| 2023 | 77° | 39° | 58° | — | — |
| 2022 | 64° | 38° | 51° | — | — |
| 2021 | 75° | 46° | 61° | — | — |
| 2020warmest | 85° | 41° | 63° | — | — |
| 2019 | 75° | 39° | 57° | — | — |
| 2018 | 37° | 34° | 35° | — | — |
| 2017 | 63° | 33° | 48° | 1.14" | 0.3" |
| 2016 | 77° | 38° | 57° | — | — |
| 2015 | 73° | 43° | 58° | — | — |
| 2014 | 63° | 47° | 55° | 2.51" | — |
| 2013 | 64° | 46° | 55° | — | — |
| 2012 | 67° | 34° | 50° | — | — |
| 2011 | 55° | 33° | 44° | — | — |
| 2010 | 67° | 40° | 53° | — | — |
| 2009 | 51° | 31° | 41° | 0.03" | — |
| 2008 | 65° | 36° | 50° | — | — |
| 2007 | 75° | 39° | 57° | — | — |
| 2006 | 48° | 36° | 42° | 1.75" | — |
| 2005 | 63° | 41° | 52° | 1.42" | — |
| 2004 | 70° | 36° | 53° | — | — |
| 2003 | 82° | 42° | 62° | — | — |
| 2002 | 69° | 43° | 56° | — | — |
| 2001 | 81° | 39° | 60° | — | — |
| 2000 | 56° | 23° | 39° | — | — |
| 1999 | 70° | 36° | 53° | — | — |
| 1998 | 79° | 35° | 57° | — | — |
| 1997 | 63° | 26° | 44° | — | — |
| 1996 | 79° | 36° | 57° | — | — |
| 1995 | 68° | 33° | 51° | — | — |
| 1994 | 64° | 32° | 48° | — | — |
| 1993 | 49° | 24° | 36° | — | — |
| 1992 | 62° | 45° | 53° | — | — |
| 1991 | 85° | 37° | 61° | — | — |
| 1990 | 41° | 23° | 32° | — | — |
| 1989 | 74° | 33° | 53° | — | — |
| 1988 | 72° | 38° | 55° | — | — |
| 1987 | 77° | 38° | 57° | — | — |
| 1986 | 75° | 40° | 57° | 0.08" | — |
| 1985coldest | 38° | 27° | 32° | 0.03" | — |
| 1984 | 64° | 35° | 50° | — | — |
| 1983 | 62° | 39° | 51° | — | — |
| 1982 | 50° | 31° | 40° | 0.61" | — |
| 1981 | 74° | 44° | 59° | 0.03" | — |
| 1980 | 80° | 40° | 60° | — | — |
| 1979 | 86° | 34° | 60° | 0.33" | — |
| 1978 | 82° | 43° | 62° | — | — |
| 1977 | 67° | 32° | 49° | — | — |
| 1976 | 77° | 30° | 54° | — | — |
| 1975 | 63° | 32° | 47° | — | — |
| 1974 | 77° | 36° | 56° | — | — |
| 1973 | 73° | 38° | 55° | — | — |
| 1972 | 69° | 44° | 57° | — | — |
| 1971 | 64° | 32° | 48° | — | — |
55 years of data from LONGMONT 2 ESE