Weather on May 27
Longmont, CO
55 Years of Data
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.
| 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° | — | — |
Longmont, CO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Longmont, CO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Longmont, CO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Longmont, CO
Longmont, CO has no months that meet our "pleasant" threshold — every season has tradeoffs.