Weather on November 17
Longmont, CO
55 Years of Data
Avg High
55°F
Avg Low
25°F
Warmest
1981
56°F avg
Coldest
1996
11°F avg
About This Date
November 17th in Longmont, CO typically brings cool fall weather, with average highs around 55°F and lows near 25°F — a 30°F daily swing. Over 55 years of records, the warmest November 17th was in 1981 (56°F average), while the coldest was 1996 (11°F) — a 45°F range across recorded history. Precipitation has occurred on 13% of recorded November 17th dates, with snow falling 11% of the time (heaviest snowfall: 8"). The last decade has been 10.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 10.0°F warmer on this date compared to 20-30 years ago.
Planning for November 17th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
2.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 41° | 56° | — | — |
| 2024 | 56° | 27° | 41° | — | — |
| 2023 | 68° | 35° | 52° | — | — |
| 2022 | 43° | 23° | 33° | — | — |
| 2021 | 70° | 25° | 47° | 0.03" | 0.1" |
| 2020 | 66° | 31° | 48° | — | — |
| 2019 | 68° | 29° | 48° | — | — |
| 2018 | 62° | 24° | 43° | 0.18" | — |
| 2017 | 69° | 31° | 50° | — | — |
| 2016 | 67° | 26° | 46° | 0.84" | 3" |
| 2015 | 51° | 32° | 42° | 0.66" | 0.1" |
| 2014 | 39° | 21° | 30° | — | — |
| 2013 | 59° | 34° | 46° | — | — |
| 2012 | 65° | 35° | 50° | — | — |
| 2011 | 59° | 21° | 40° | — | — |
| 2010 | 44° | 24° | 34° | — | — |
| 2009 | 54° | 23° | 38° | — | — |
| 2008 | 72° | 38° | 55° | — | — |
| 2007 | 60° | 46° | 53° | — | — |
| 2006 | 56° | 31° | 43° | — | — |
| 2005 | 42° | 26° | 34° | 0.36" | 1.2" |
| 2004 | 65° | 33° | 49° | — | — |
| 2003 | 60° | 27° | 43° | — | — |
| 2002 | 60° | 22° | 41° | — | — |
| 2001 | 65° | 27° | 46° | — | — |
| 2000 | 35° | 3° | 19° | — | — |
| 1999 | 75° | 36° | 55° | — | — |
| 1998 | 62° | 26° | 44° | — | — |
| 1997 | 36° | 9° | 22° | — | — |
| 1996coldest | 24° | -2° | 11° | — | — |
| 1995 | 71° | 28° | 50° | — | — |
| 1994 | 45° | 17° | 31° | — | — |
| 1993 | 47° | 13° | 30° | — | — |
| 1992 | 61° | 27° | 44° | — | — |
| 1991 | 41° | 29° | 35° | 1.83" | 8" |
| 1990 | 52° | 22° | 37° | — | — |
| 1989 | 48° | 16° | 32° | — | — |
| 1988 | 48° | 12° | 30° | — | — |
| 1987 | 35° | 18° | 26° | — | — |
| 1986 | 62° | 26° | 44° | — | — |
| 1985 | 44° | 20° | 32° | — | — |
| 1984 | 40° | 20° | 30° | — | — |
| 1983 | 50° | 25° | 37° | — | — |
| 1982 | 54° | 18° | 36° | — | — |
| 1981warmest | 78° | 33° | 56° | — | — |
| 1980 | 32° | 14° | 23° | — | — |
| 1979 | 61° | 22° | 41° | — | — |
| 1978 | 47° | 17° | 32° | — | — |
| 1977 | 42° | 22° | 32° | — | — |
| 1976 | 49° | 26° | 37° | — | — |
| 1975 | 71° | 29° | 50° | — | — |
| 1974 | 57° | 22° | 39° | — | — |
| 1973 | 66° | 25° | 45° | — | — |
| 1972 | 41° | 18° | 29° | — | — |
| 1971 | 40° | 29° | 34° | 0.05" | 0.2" |
55 years of data from LONGMONT 2 ESE