Weather on May 19
Longmont, CO
55 Years of Data
Avg High
74°F
Avg Low
45°F
Warmest
1996
75°F avg
Coldest
2017
37°F avg
About This Date
May 19th in Longmont, CO typically brings pleasant spring weather, with average highs around 74°F and lows near 45°F — a 29°F daily swing. Over 54 years of records, the warmest May 19th was in 1996 (75°F average), while the coldest was 2017 (37°F) — a 38°F range across recorded history. Precipitation has occurred on 28% of recorded May 19th dates, with snow falling 2% of the time. The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
Planning for May 19th in Longmont, CO? Great weather for outdoor activities.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 46° | 55° | 0.08" | — |
| 2024 | 77° | 50° | 64° | — | — |
| 2023 | 70° | 48° | 59° | 3.63" | — |
| 2022 | 85° | 50° | 67° | — | — |
| 2021 | 64° | 43° | 53° | — | — |
| 2020 | 89° | 52° | 70° | — | — |
| 2019 | 66° | 38° | 52° | — | — |
| 2018 | 70° | 49° | 59° | 1.09" | — |
| 2017coldest | 43° | 32° | 37° | 0.71" | 0.8" |
| 2016 | 74° | 40° | 57° | — | — |
| 2015 | 46° | 42° | 44° | 3.43" | — |
| 2014 | 81° | 47° | 64° | — | — |
| 2013 | 72° | 47° | 59° | — | — |
| 2012 | 72° | 46° | 59° | 0.36" | — |
| 2011 | 43° | 38° | 40° | 3.17" | — |
| 2010 | 67° | 39° | 53° | 0.51" | — |
| 2008 | 82° | 55° | 69° | — | — |
| 2007 | 80° | 45° | 62° | — | — |
| 2006 | 90° | 58° | 74° | — | — |
| 2005 | 83° | 50° | 66° | — | — |
| 2004 | 75° | 49° | 62° | — | — |
| 2003 | 75° | 42° | 59° | 0.1" | — |
| 2002 | 73° | 41° | 57° | — | — |
| 2001 | 79° | 51° | 65° | — | — |
| 2000 | 56° | 37° | 46° | — | — |
| 1999 | 80° | 35° | 58° | — | — |
| 1998 | 88° | 42° | 65° | — | — |
| 1997 | 82° | 38° | 60° | — | — |
| 1996warmest | 94° | 56° | 75° | — | — |
| 1995 | 69° | 41° | 55° | — | — |
| 1994 | 88° | 48° | 68° | — | — |
| 1993 | 73° | 43° | 58° | — | — |
| 1992 | 89° | 47° | 68° | — | — |
| 1991 | 76° | 48° | 62° | — | — |
| 1990 | 80° | 42° | 61° | — | — |
| 1989 | 78° | 47° | 62° | — | — |
| 1988 | 77° | 45° | 61° | 3.2" | — |
| 1987 | 82° | 47° | 64° | 0.05" | — |
| 1986 | 76° | 45° | 60° | — | — |
| 1985 | 70° | 43° | 56° | 0.69" | — |
| 1984 | 80° | 45° | 62° | 0.25" | — |
| 1983 | 60° | 34° | 47° | — | — |
| 1982 | 79° | 47° | 63° | — | — |
| 1981 | 48° | 40° | 44° | — | — |
| 1980 | 61° | 41° | 51° | — | — |
| 1979 | 80° | 53° | 67° | — | — |
| 1978 | 69° | 40° | 54° | — | — |
| 1977 | 82° | 45° | 63° | — | — |
| 1976 | 88° | 49° | 68° | — | — |
| 1975 | 77° | 51° | 64° | — | — |
| 1974 | 80° | 48° | 64° | 0.2" | — |
| 1973 | 88° | 54° | 71° | — | — |
| 1972 | 84° | 49° | 66° | — | — |
| 1971 | 53° | 33° | 43° | 0.48" | — |
54 years of data from LONGMONT 2 ESE