Weather on May 27
Longmont, CO
55 Years of Data
Avg High
75°F
Avg Low
46°F
Warmest
2006
72°F avg
Coldest
1996
44°F avg
About This Date
May 27th in Longmont, CO typically brings pleasant spring weather, with average highs around 75°F and lows near 46°F — a 29°F daily swing. Over 54 years of records, the warmest May 27th was in 2006 (72°F average), while the coldest was 1996 (44°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 31% of May 27th dates historically, with the wettest May 27th recording 2.57" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for May 27th in Longmont, CO? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 47° | 56° | 0.2" | — |
| 2024 | 74° | 45° | 59° | — | — |
| 2023 | 73° | 49° | 61° | 1.7" | — |
| 2022 | 85° | 49° | 67° | — | — |
| 2021 | 79° | 48° | 63° | — | — |
| 2020 | 80° | 45° | 62° | — | — |
| 2019 | 72° | 45° | 58° | 0.08" | — |
| 2018 | 89° | 56° | 72° | — | — |
| 2017 | 65° | 46° | 55° | 0.46" | — |
| 2016 | 62° | 45° | 53° | 0.15" | — |
| 2015 | 74° | 46° | 60° | — | — |
| 2014 | 83° | 48° | 65° | 0.05" | — |
| 2013 | 84° | 52° | 68° | — | — |
| 2012 | 86° | 53° | 70° | — | — |
| 2011 | 69° | 48° | 59° | — | — |
| 2010 | 84° | 49° | 66° | — | — |
| 2008 | 53° | 41° | 47° | 2.21" | — |
| 2007 | 81° | 44° | 62° | 0.03" | — |
| 2006warmest | 92° | 53° | 72° | — | — |
| 2005 | 70° | 44° | 57° | — | — |
| 2004 | 80° | 50° | 65° | — | — |
| 2003 | 79° | 56° | 67° | — | — |
| 2002 | 82° | 46° | 64° | — | — |
| 2001 | 80° | 48° | 64° | 0.05" | — |
| 2000 | 77° | 43° | 60° | — | — |
| 1999 | 77° | 40° | 58° | — | — |
| 1998 | 82° | 41° | 62° | 0.03" | — |
| 1997 | 64° | 38° | 51° | 0.03" | — |
| 1996coldest | 49° | 40° | 44° | 2.01" | — |
| 1995 | 69° | 44° | 57° | 2.57" | — |
| 1994 | 69° | 39° | 54° | — | — |
| 1993 | 87° | 43° | 65° | — | — |
| 1992 | 60° | 39° | 50° | 0.3" | — |
| 1991 | 78° | 53° | 66° | — | — |
| 1990 | 69° | 44° | 57° | — | — |
| 1989 | 65° | 38° | 51° | — | — |
| 1988 | 84° | 46° | 65° | — | — |
| 1987 | 68° | 46° | 57° | 0.05" | — |
| 1986 | 66° | 48° | 57° | — | — |
| 1985 | 84° | 46° | 65° | — | — |
| 1984 | 79° | 46° | 62° | — | — |
| 1983 | 90° | 50° | 70° | — | — |
| 1982 | 75° | 43° | 59° | — | — |
| 1981 | 78° | 56° | 67° | — | — |
| 1980 | 79° | 41° | 60° | — | — |
| 1979 | 78° | 49° | 63° | — | — |
| 1978 | 79° | 51° | 65° | 0.3" | — |
| 1977 | 75° | 41° | 58° | — | — |
| 1976 | 68° | 43° | 55° | — | — |
| 1975 | 71° | 43° | 57° | — | — |
| 1974 | 84° | 47° | 65° | — | — |
| 1973 | 66° | 40° | 53° | — | — |
| 1972 | 77° | 48° | 63° | 0.08" | — |
| 1971 | 78° | 46° | 62° | — | — |
54 years of data from LONGMONT 2 ESE