Weather on February 15
Longmont, CO
55 Years of Data
Avg High
48°F
Avg Low
18°F
Warmest
1986
53°F avg
Coldest
2021
-4°F avg
About This Date
February 15th in Longmont, CO typically brings chilly winter weather, with average highs around 48°F and lows near 18°F — a 30°F daily swing. Over 56 years of records, the warmest February 15th was in 1986 (53°F average), while the coldest was 2021 (-4°F) — a 57°F range across recorded history. Precipitation has occurred on 21% of recorded February 15th dates, with snow falling 18% of the time (heaviest snowfall: 4"). The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
Planning for February 15th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 61° | 27° | 44° | — | — |
| 2025 | 45° | 18° | 31° | — | — |
| 2024 | 52° | 25° | 38° | — | — |
| 2023 | 51° | 13° | 32° | 0.2" | 1.5" |
| 2022 | 50° | 23° | 37° | — | — |
| 2021coldest | 3° | -11° | -4° | — | — |
| 2020 | 53° | 10° | 32° | — | — |
| 2019 | 59° | 21° | 40° | — | — |
| 2018 | 65° | 29° | 47° | — | — |
| 2017 | 67° | 26° | 46° | — | — |
| 2016 | 58° | 33° | 45° | — | — |
| 2015 | 59° | 30° | 45° | 0.28" | 1.4" |
| 2014 | 57° | 29° | 43° | — | — |
| 2013 | 41° | 11° | 26° | 0.08" | 0.7" |
| 2012 | 37° | 23° | 30° | — | — |
| 2011 | 64° | 36° | 50° | — | — |
| 2010 | 36° | 8° | 22° | — | — |
| 2009 | 48° | 16° | 32° | — | — |
| 2008 | 42° | 12° | 27° | — | — |
| 2007 | 32° | 3° | 18° | 0.05" | 0.9" |
| 2006 | 40° | 24° | 32° | 0.03" | 0.1" |
| 2005 | 49° | 25° | 37° | 0.66" | 2.7" |
| 2004 | 51° | 15° | 33° | — | — |
| 2003 | 55° | 23° | 39° | — | — |
| 2002 | 48° | 2° | 25° | 0.33" | 0.1" |
| 2001 | 22° | -5° | 8° | — | — |
| 2000 | 69° | 28° | 49° | — | — |
| 1999 | 68° | 12° | 40° | — | — |
| 1998 | 49° | 26° | 37° | — | — |
| 1997 | 54° | 15° | 34° | — | — |
| 1996 | 48° | 14° | 31° | — | — |
| 1995 | 45° | 0° | 22° | — | — |
| 1994 | 52° | 15° | 33° | — | — |
| 1993 | 33° | 7° | 20° | 0.38" | 2" |
| 1992 | 56° | 20° | 38° | — | — |
| 1991 | 48° | 25° | 36° | — | — |
| 1990 | 15° | -5° | 5° | 0.25" | 2" |
| 1989 | 34° | 11° | 22° | — | — |
| 1988 | 44° | 19° | 32° | — | — |
| 1987 | 43° | 24° | 33° | 0.58" | — |
| 1986warmest | 63° | 43° | 53° | — | — |
| 1985 | 50° | 18° | 34° | — | — |
| 1984 | 46° | 30° | 38° | — | — |
| 1983 | 49° | 24° | 36° | — | — |
| 1982 | 62° | 29° | 45° | — | — |
| 1981 | 61° | 23° | 42° | — | — |
| 1980 | 25° | 17° | 21° | — | — |
| 1979 | 65° | 16° | 40° | — | — |
| 1978 | 24° | 10° | 17° | — | — |
| 1977 | 39° | 14° | 27° | 0.03" | — |
| 1976 | 64° | 27° | 45° | — | — |
| 1975 | 46° | 13° | 29° | 1.47" | 4" |
| 1974 | 49° | 22° | 35° | — | — |
| 1973 | 34° | 16° | 25° | — | — |
| 1972 | 47° | 14° | 30° | — | — |
| 1971 | 57° | 25° | 41° | — | — |
56 years of data from LONGMONT 2 ESE