Weather on October 20
Longmont, CO
55 Years of Data
Avg High
67°F
Avg Low
33°F
Warmest
2007
65°F avg
Coldest
1982
34°F avg
About This Date
October 20th in Longmont, CO typically brings mild fall weather, with average highs around 67°F and lows near 33°F — a 34°F daily swing. Over 55 years of records, the warmest October 20th was in 2007 (65°F average), while the coldest was 1982 (34°F) — a 31°F range across recorded history. Precipitation has occurred on 9% of recorded October 20th dates, with snow falling 2% of the time. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 20th in Longmont, CO? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 32° | 55° | — | — |
| 2024 | 59° | 43° | 51° | — | — |
| 2023 | 78° | 40° | 59° | — | — |
| 2022 | 76° | 34° | 55° | — | — |
| 2021 | 59° | 30° | 45° | — | — |
| 2020 | 58° | 33° | 45° | — | — |
| 2019 | 67° | 31° | 49° | — | — |
| 2018 | 70° | 33° | 51° | — | — |
| 2017 | 72° | 35° | 53° | — | — |
| 2016 | 61° | 26° | 43° | — | — |
| 2015 | 74° | 46° | 60° | — | — |
| 2014 | 76° | 41° | 58° | — | — |
| 2013 | 57° | 33° | 45° | 0.69" | 0.1" |
| 2012 | 79° | 51° | 65° | — | — |
| 2011 | 73° | 35° | 54° | — | — |
| 2010 | 72° | 38° | 55° | — | — |
| 2009 | 62° | 37° | 50° | — | — |
| 2008 | 64° | 46° | 55° | — | — |
| 2007warmest | 77° | 54° | 65° | — | — |
| 2006 | 62° | 38° | 50° | 0.05" | — |
| 2005 | 70° | 38° | 54° | 0.03" | — |
| 2004 | 65° | 38° | 51° | — | — |
| 2003 | 88° | 38° | 63° | — | — |
| 2002 | 63° | 26° | 44° | — | — |
| 2001 | 74° | 35° | 54° | — | — |
| 2000 | 76° | 30° | 53° | — | — |
| 1999 | 56° | 21° | 38° | — | — |
| 1998 | 60° | 25° | 42° | — | — |
| 1997 | 52° | 37° | 44° | — | — |
| 1996 | 77° | 30° | 54° | — | — |
| 1995 | 62° | 20° | 41° | — | — |
| 1994 | 65° | 31° | 48° | — | — |
| 1993 | 62° | — | — | 0.05" | — |
| 1992 | 78° | 33° | 56° | — | — |
| 1991 | 67° | 29° | 48° | — | — |
| 1990 | 74° | 25° | 49° | — | — |
| 1989 | 60° | 25° | 42° | — | — |
| 1988 | 64° | 30° | 47° | — | — |
| 1987 | 42° | 27° | 34° | — | — |
| 1986 | 55° | 44° | 50° | 0.46" | — |
| 1985 | 71° | 32° | 52° | — | — |
| 1984 | 45° | 25° | 35° | — | — |
| 1983 | 63° | 33° | 48° | — | — |
| 1982coldest | 44° | 25° | 34° | — | — |
| 1981 | 77° | 27° | 52° | — | — |
| 1980 | 65° | 30° | 47° | — | — |
| 1979 | 75° | 39° | 57° | — | — |
| 1978 | 80° | 33° | 57° | — | — |
| 1977 | 79° | 36° | 57° | — | — |
| 1976 | 54° | 19° | 36° | — | — |
| 1975 | 78° | 33° | 56° | — | — |
| 1974 | 75° | 39° | 57° | — | — |
| 1973 | 76° | 36° | 56° | — | — |
| 1972 | 47° | 33° | 40° | — | — |
| 1971 | 60° | 29° | 44° | — | — |
55 years of data from LONGMONT 2 ESE