Weather on May 23
Longmont, CO
55 Years of Data
Avg High
73°F
Avg Low
44°F
Warmest
2000
70°F avg
Coldest
2019
44°F avg
About This Date
May 23rd in Longmont, CO typically brings pleasant spring weather, with average highs around 73°F and lows near 44°F — a 29°F daily swing. Over 54 years of records, the warmest May 23rd was in 2000 (70°F average), while the coldest was 2019 (44°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 46% of May 23rd dates historically, with the wettest May 23rd recording 1.85" of rain. The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.4°F cooler on this date compared to 20-30 years ago.
Planning for May 23rd in Longmont, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 49° | 63° | — | — |
| 2024 | 74° | 40° | 57° | — | — |
| 2023 | 77° | 49° | 63° | — | — |
| 2022 | 60° | 43° | 51° | 0.13" | — |
| 2021 | 66° | 52° | 59° | 0.66" | — |
| 2020 | 85° | 51° | 68° | — | — |
| 2019coldest | 51° | 38° | 44° | 0.15" | — |
| 2018 | 79° | 48° | 63° | 1.63" | — |
| 2017 | 65° | 35° | 50° | 0.41" | — |
| 2016 | 69° | 43° | 56° | — | — |
| 2015 | 58° | 42° | 50° | 0.89" | — |
| 2014 | 72° | 46° | 59° | — | — |
| 2013 | 74° | 48° | 61° | 0.15" | — |
| 2012 | 88° | 51° | 69° | 0.46" | — |
| 2011 | 73° | 48° | 61° | 0.03" | — |
| 2010 | 81° | 41° | 61° | — | — |
| 2008 | 69° | 38° | 53° | — | — |
| 2007 | 56° | 38° | 47° | 0.2" | — |
| 2006 | 76° | 46° | 61° | 0.38" | — |
| 2005 | 87° | 54° | 70° | 0.05" | — |
| 2004 | 69° | 42° | 56° | 0.25" | — |
| 2003 | 80° | 45° | 62° | — | — |
| 2002 | 71° | 32° | 52° | — | — |
| 2001 | 78° | 37° | 58° | — | — |
| 2000warmest | 89° | 50° | 70° | — | — |
| 1999 | 84° | 49° | 66° | 0.89" | — |
| 1998 | 68° | 40° | 54° | 0.2" | — |
| 1997 | 59° | 43° | 51° | 1.85" | — |
| 1996 | 88° | 51° | 69° | 0.08" | — |
| 1995 | 55° | 36° | 45° | 0.43" | — |
| 1994 | 85° | 42° | 63° | — | — |
| 1993 | 80° | 40° | 60° | — | — |
| 1992 | 57° | 45° | 51° | — | — |
| 1991 | 75° | 50° | 63° | 0.33" | — |
| 1990 | 89° | 47° | 68° | — | — |
| 1989 | 84° | 48° | 66° | — | — |
| 1988 | 66° | 44° | 55° | — | — |
| 1987 | 69° | 45° | 57° | 0.13" | — |
| 1986 | 66° | 38° | 52° | — | — |
| 1985 | 76° | 40° | 58° | — | — |
| 1984 | 71° | 47° | 59° | — | — |
| 1983 | 66° | 40° | 53° | — | — |
| 1982 | 80° | 51° | 66° | — | — |
| 1981 | 73° | 53° | 63° | — | — |
| 1980 | 85° | 51° | 68° | — | — |
| 1979 | 75° | 48° | 62° | 0.03" | — |
| 1978 | 82° | 47° | 64° | — | — |
| 1977 | 77° | 46° | 62° | — | — |
| 1976 | 56° | 46° | 51° | 0.13" | — |
| 1975 | 52° | 39° | 45° | 0.81" | — |
| 1974 | 74° | 42° | 58° | — | — |
| 1973 | 68° | 43° | 55° | 0.05" | — |
| 1972 | 72° | 41° | 56° | — | — |
| 1971 | 72° | 42° | 57° | 0.28" | — |
54 years of data from LONGMONT 2 ESE