Weather on March 19
Longmont, CO
55 Years of Data
Avg High
56°F
Avg Low
27°F
Warmest
2017
66°F avg
Coldest
1983
23°F avg
About This Date
March 19th in Longmont, CO typically brings cool spring weather, with average highs around 56°F and lows near 27°F — a 29°F daily swing. Over 56 years of records, the warmest March 19th was in 2017 (66°F average), while the coldest was 1983 (23°F) — a 43°F range across recorded history. Precipitation has occurred on 27% of recorded March 19th dates, with snow falling 14% of the time (heaviest snowfall: 12.3"). The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.0°F warmer on this date compared to 20-30 years ago.
Planning for March 19th in Longmont, CO? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 85° | 42° | 63° | — | — |
| 2025 | 66° | 30° | 48° | — | — |
| 2024 | 62° | 27° | 44° | — | — |
| 2023 | 49° | 15° | 32° | — | — |
| 2022 | 57° | 23° | 40° | — | — |
| 2021 | 46° | 19° | 33° | — | — |
| 2020 | 65° | 30° | 47° | 0.03" | — |
| 2019 | 50° | 28° | 39° | — | — |
| 2018 | 57° | 31° | 44° | 1.75" | 0.1" |
| 2017warmest | 78° | 53° | 66° | — | — |
| 2016 | 39° | 15° | 27° | 0.13" | 1.1" |
| 2015 | 61° | 40° | 50° | 0.05" | — |
| 2014 | 57° | 21° | 39° | — | — |
| 2013 | 55° | 37° | 46° | — | — |
| 2012 | 55° | 31° | 43° | — | — |
| 2011 | 72° | 29° | 50° | — | — |
| 2010 | 51° | 23° | 37° | 2.59" | 12.3" |
| 2009 | 66° | 30° | 48° | — | — |
| 2008 | 61° | 33° | 47° | — | — |
| 2007 | 70° | 37° | 53° | — | — |
| 2006 | 44° | 32° | 38° | 0.74" | 0.5" |
| 2005 | 57° | 23° | 40° | — | — |
| 2004 | 71° | 42° | 57° | — | — |
| 2003 | 42° | 32° | 37° | 4.98" | 10.8" |
| 2002 | 44° | 19° | 32° | — | — |
| 2001 | 50° | 15° | 33° | — | — |
| 2000 | 47° | 18° | 32° | — | — |
| 1999 | 59° | 20° | 39° | — | — |
| 1998 | 37° | 10° | 24° | 2.34" | 8" |
| 1997 | 64° | 23° | 44° | — | — |
| 1996 | 44° | 18° | 31° | — | — |
| 1995 | 75° | 33° | 54° | — | — |
| 1994 | 73° | 38° | 55° | — | — |
| 1993 | 61° | 26° | 43° | — | — |
| 1992 | 50° | 30° | 40° | 0.33" | — |
| 1991 | 65° | 25° | 45° | — | — |
| 1990 | 43° | 24° | 33° | — | — |
| 1989 | 59° | 17° | 38° | — | — |
| 1988 | 53° | 16° | 34° | — | — |
| 1987 | 54° | 27° | 40° | — | — |
| 1986 | 39° | 23° | 31° | 0.25" | 1.5" |
| 1985 | 56° | 40° | 48° | — | — |
| 1984 | 40° | 25° | 32° | 0.28" | — |
| 1983coldest | 30° | 16° | 23° | 0.1" | — |
| 1982 | 52° | 29° | 40° | — | — |
| 1981 | 46° | 26° | 36° | — | — |
| 1980 | 65° | 26° | 45° | — | — |
| 1979 | 38° | 32° | 35° | 1.02" | — |
| 1978 | 72° | 34° | 53° | — | — |
| 1977 | 42° | 21° | 32° | — | — |
| 1976 | 70° | 35° | 52° | — | — |
| 1975 | 61° | 39° | 50° | — | — |
| 1974 | 51° | 27° | 39° | 0.64" | 3" |
| 1973 | 56° | 32° | 44° | 0.56" | — |
| 1972 | 76° | 34° | 55° | — | — |
| 1971 | 40° | 16° | 28° | — | — |
56 years of data from LONGMONT 2 ESE