Weather on February 17
Longmont, CO
55 Years of Data
Avg High
45°F
Avg Low
20°F
Warmest
2017
52°F avg
Coldest
1993
-2°F avg
About This Date
February 17th in Longmont, CO typically brings chilly winter weather, with average highs around 45°F and lows near 20°F — a 25°F daily swing. Over 56 years of records, the warmest February 17th was in 2017 (52°F average), while the coldest was 1993 (-2°F) — a 54°F range across recorded history. Precipitation has occurred on 16% of recorded February 17th dates, with snow falling 13% of the time (heaviest snowfall: 2.8"). The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
Planning for February 17th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 69° | 32° | 51° | — | — |
| 2025 | 32° | 6° | 19° | — | — |
| 2024 | 29° | 9° | 19° | 0.25" | 1.6" |
| 2023 | 33° | 6° | 20° | — | — |
| 2022 | 32° | 11° | 21° | 0.66" | 2.8" |
| 2021 | 42° | 3° | 23° | — | — |
| 2020 | 45° | 23° | 34° | — | — |
| 2019 | 40° | 17° | 28° | 0.03" | — |
| 2018 | 43° | 23° | 33° | — | — |
| 2017warmest | 67° | 38° | 52° | — | — |
| 2016 | 62° | 32° | 47° | — | — |
| 2015 | 38° | 11° | 24° | 0.36" | 2.2" |
| 2014 | 64° | 32° | 48° | — | — |
| 2013 | 61° | 35° | 48° | — | — |
| 2012 | 44° | 24° | 34° | — | — |
| 2011 | 56° | 38° | 47° | — | — |
| 2010 | 44° | 20° | 32° | — | — |
| 2009 | 54° | 35° | 44° | — | — |
| 2008 | 44° | 25° | 34° | — | — |
| 2007 | 44° | 23° | 34° | 0.08" | 0.5" |
| 2006 | 10° | -3° | 4° | 0.05" | 0.6" |
| 2005 | 48° | 13° | 30° | — | — |
| 2004 | 50° | 20° | 35° | — | — |
| 2003 | 45° | 25° | 35° | — | — |
| 2002 | 56° | 19° | 37° | — | — |
| 2001 | 35° | 13° | 24° | — | — |
| 2000 | 55° | 22° | 38° | — | — |
| 1999 | 45° | 16° | 30° | — | — |
| 1998 | 44° | 24° | 34° | 0.03" | — |
| 1997 | 61° | 25° | 43° | — | — |
| 1996 | 65° | 24° | 44° | — | — |
| 1995 | 43° | 14° | 28° | — | — |
| 1994 | 65° | 24° | 44° | — | — |
| 1993coldest | 6° | -11° | -2° | — | — |
| 1992 | 49° | 26° | 37° | — | — |
| 1991 | 55° | 34° | 44° | — | — |
| 1990 | 23° | -8° | 8° | — | — |
| 1989 | 33° | 6° | 20° | — | — |
| 1988 | 40° | 5° | 22° | 0.25" | 1" |
| 1987 | 35° | 29° | 32° | 0.15" | 0.5" |
| 1986 | 63° | 39° | 51° | — | — |
| 1985 | 38° | 24° | 31° | — | — |
| 1984 | 40° | 18° | 29° | — | — |
| 1983 | 58° | 23° | 40° | — | — |
| 1982 | 66° | 33° | 50° | — | — |
| 1981 | — | 27° | — | — | — |
| 1980 | 22° | 6° | 14° | — | — |
| 1979 | 28° | 15° | 22° | — | — |
| 1978 | 22° | -6° | 8° | — | — |
| 1977 | 59° | 29° | 44° | — | — |
| 1976 | 57° | 30° | 44° | — | — |
| 1975 | 30° | 10° | 20° | — | — |
| 1974 | 54° | 21° | 37° | — | — |
| 1973 | 38° | 18° | 28° | — | — |
| 1972 | 61° | 29° | 45° | — | — |
| 1971 | 53° | 24° | 39° | — | — |
56 years of data from LONGMONT 2 ESE