Weather on August 27
Longmont, CO
55 Years of Data
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° | — | — |
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.