Weather on August 27
Longmont, CO
55 Years of Data
Avg High
87°F
Avg Low
54°F
Warmest
1994
78°F avg
Coldest
1987
59°F avg
About This Date
August 27th in Longmont, CO typically brings warm summer weather, with average highs around 87°F and lows near 54°F — a 33°F daily swing. Over 55 years of records, the warmest August 27th was in 1994 (78°F average), while the coldest was 1987 (59°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 27th dates historically, with the wettest August 27th recording 0.66" of rain. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for August 27th in Longmont, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 54° | 63° | 0.25" | — |
| 2024 | 83° | 53° | 68° | — | — |
| 2023 | 78° | 57° | 68° | — | — |
| 2022 | 83° | 53° | 68° | — | — |
| 2021 | 86° | 58° | 72° | — | — |
| 2020 | 91° | 57° | 74° | 0.05" | — |
| 2019 | 80° | 54° | 67° | — | — |
| 2018 | 94° | 58° | 76° | — | — |
| 2017 | 93° | 56° | 74° | — | — |
| 2016 | 82° | 47° | 64° | — | — |
| 2015 | 88° | 61° | 74° | — | — |
| 2014 | 76° | 57° | 66° | 0.46" | — |
| 2013 | 91° | 59° | 75° | 0.38" | — |
| 2012 | 91° | 60° | 76° | — | — |
| 2011 | 94° | 59° | 76° | — | — |
| 2010 | 89° | 57° | 73° | — | — |
| 2009 | 88° | 53° | 70° | — | — |
| 2008 | 84° | 53° | 69° | — | — |
| 2007 | 88° | 66° | 77° | 0.03" | — |
| 2006 | 72° | 47° | 59° | 0.05" | — |
| 2005 | 87° | 55° | 71° | — | — |
| 2004 | 81° | 52° | 66° | 0.1" | — |
| 2003 | 90° | 57° | 73° | — | — |
| 2002 | 94° | 49° | 71° | 0.05" | — |
| 2001 | 95° | 48° | 72° | — | — |
| 2000 | 90° | 57° | 73° | — | — |
| 1999 | 94° | 53° | 73° | — | — |
| 1998 | 95° | 55° | 75° | 0.1" | — |
| 1997 | 89° | 53° | 71° | — | — |
| 1996 | 85° | 50° | 67° | — | — |
| 1995 | 89° | 56° | 72° | — | — |
| 1994warmest | 98° | 57° | 78° | — | — |
| 1993 | 75° | 48° | 62° | 0.05" | — |
| 1992 | — | 37° | — | — | — |
| 1991 | 95° | 58° | 76° | — | — |
| 1990 | 91° | 52° | 71° | — | — |
| 1989 | 84° | 52° | 68° | 0.66" | — |
| 1988 | 98° | 54° | 76° | — | — |
| 1987coldest | 69° | 49° | 59° | 0.18" | — |
| 1986 | 78° | 52° | 65° | — | — |
| 1985 | 92° | 57° | 74° | — | — |
| 1984 | 88° | 49° | 68° | — | — |
| 1983 | 90° | 57° | 73° | — | — |
| 1982 | 91° | 60° | 76° | — | — |
| 1981 | 80° | 58° | 69° | — | — |
| 1980 | 80° | 54° | 67° | 0.05" | — |
| 1979 | 78° | 50° | 64° | — | — |
| 1978 | 91° | 54° | 72° | — | — |
| 1977 | 94° | 51° | 72° | 0.28" | — |
| 1976 | 95° | 47° | 71° | — | — |
| 1975 | 88° | 51° | 69° | — | — |
| 1974 | 93° | 55° | 74° | — | — |
| 1973 | 96° | 53° | 75° | — | — |
| 1972 | 76° | 49° | 62° | — | — |
| 1971 | 92° | 59° | 75° | — | — |
55 years of data from LONGMONT 2 ESE