Weather on March 23
Longmont, CO
55 Years of Data
Avg High
57°F
Avg Low
28°F
Warmest
2004
62°F avg
Coldest
1974
20°F avg
About This Date
March 23rd in Longmont, CO typically brings cool spring weather, with average highs around 57°F and lows near 28°F — a 29°F daily swing. Over 56 years of records, the warmest March 23rd was in 2004 (62°F average), while the coldest was 1974 (20°F) — a 42°F range across recorded history. Precipitation has occurred on 25% of recorded March 23rd dates, with snow falling 16% of the time (heaviest snowfall: 16.4"). 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 March 23rd in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 67° | 40° | 53° | — | — |
| 2025 | 62° | 27° | 44° | — | — |
| 2024 | 66° | 32° | 49° | — | — |
| 2023 | 39° | 27° | 33° | 0.18" | — |
| 2022 | 45° | 24° | 34° | — | — |
| 2021 | 41° | 30° | 36° | 0.97" | 2.1" |
| 2020 | 56° | 28° | 42° | — | — |
| 2019 | 58° | 37° | 47° | — | — |
| 2018 | 76° | 37° | 56° | — | — |
| 2017 | 75° | 43° | 59° | — | — |
| 2016 | 64° | 31° | 47° | 6.1" | 16.4" |
| 2015 | 68° | 36° | 52° | — | — |
| 2014 | 59° | 22° | 40° | 0.05" | 0.1" |
| 2013 | 29° | 18° | 23° | 2.08" | 10.6" |
| 2012 | 76° | 36° | 56° | — | — |
| 2011 | 59° | 35° | 47° | — | — |
| 2010 | 56° | 31° | 43° | 1.78" | 3.1" |
| 2009 | 71° | 36° | 53° | 0.43" | — |
| 2008 | 51° | 17° | 34° | 0.3" | 1.7" |
| 2007 | 66° | 41° | 54° | 0.43" | — |
| 2006 | 46° | 19° | 33° | 0.08" | 0.4" |
| 2005 | 50° | 30° | 40° | 0.03" | — |
| 2004warmest | 79° | 45° | 62° | — | — |
| 2003 | 51° | 32° | 42° | — | — |
| 2002 | 64° | 23° | 44° | — | — |
| 2001 | 65° | 25° | 45° | — | — |
| 2000 | 48° | 25° | 36° | — | — |
| 1999 | 64° | 21° | 43° | — | — |
| 1998 | 71° | 35° | 53° | — | — |
| 1997 | 69° | 30° | 50° | — | — |
| 1996 | 59° | 26° | 43° | — | — |
| 1995 | 58° | 26° | 42° | — | — |
| 1994 | 74° | 34° | 54° | — | — |
| 1993 | 62° | 22° | 42° | — | — |
| 1992 | 47° | 23° | 35° | — | — |
| 1991 | 55° | 30° | 43° | — | — |
| 1990 | 67° | 15° | 41° | — | — |
| 1989 | 67° | 29° | 48° | — | — |
| 1988 | 65° | 29° | 47° | — | — |
| 1987 | 34° | 24° | 29° | — | — |
| 1986 | 68° | 32° | 50° | — | — |
| 1985 | 58° | 33° | 45° | — | — |
| 1984 | 36° | 25° | 30° | 1.91" | 5" |
| 1983 | 31° | 21° | 26° | — | — |
| 1982 | 55° | 23° | 39° | — | — |
| 1981 | 55° | 27° | 41° | — | — |
| 1980 | 39° | 30° | 35° | — | — |
| 1979 | 37° | 24° | 31° | — | — |
| 1978 | 57° | 30° | 44° | 1.02" | — |
| 1977 | 68° | 24° | 46° | — | — |
| 1976 | 67° | 29° | 48° | — | — |
| 1975 | 64° | 30° | 47° | — | — |
| 1974coldest | 29° | 11° | 20° | 0.58" | 3" |
| 1973 | 58° | 24° | 41° | — | — |
| 1972 | 76° | 34° | 55° | — | — |
| 1971 | 36° | 22° | 29° | — | — |
56 years of data from LONGMONT 2 ESE