Weather on August 25
Boulder, CO
55 Years of Data
Avg High
85°F
Avg Low
56°F
Warmest
2020
82°F avg
Coldest
1992
55°F avg
About This Date
August 25th in Boulder, CO typically brings warm summer weather, with average highs around 85°F and lows near 56°F — a 29°F daily swing. Over 55 years of records, the warmest August 25th was in 2020 (82°F average), while the coldest was 1992 (55°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 22% of August 25th dates historically, with the wettest August 25th recording 0.51" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 25th in Boulder, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 57° | 64° | — | — |
| 2024 | 90° | 59° | 74° | — | — |
| 2023 | 70° | 57° | 63° | — | — |
| 2022 | 82° | 55° | 69° | 0.1" | — |
| 2021 | 84° | 61° | 72° | — | — |
| 2020warmest | 97° | 68° | 82° | — | — |
| 2019 | 97° | 59° | 78° | — | — |
| 2018 | 91° | 61° | 76° | — | — |
| 2017 | 89° | 54° | 71° | — | — |
| 2016 | 71° | 46° | 59° | 0.51" | — |
| 2015 | 94° | 54° | 74° | — | — |
| 2014 | 82° | 51° | 67° | 0.18" | — |
| 2013 | 88° | 59° | 73° | 0.2" | — |
| 2012 | 80° | 57° | 69° | — | — |
| 2011 | 96° | 57° | 77° | — | — |
| 2010 | 89° | 51° | 70° | — | — |
| 2009 | 76° | 55° | 65° | — | — |
| 2008 | 86° | 53° | 70° | — | — |
| 2007 | 85° | 50° | 67° | — | — |
| 2006 | 80° | 62° | 71° | — | — |
| 2005 | 85° | 56° | 70° | 0.05" | — |
| 2004 | 85° | 52° | 68° | 0.03" | — |
| 2003 | 85° | 61° | 73° | — | — |
| 2002 | 89° | 57° | 73° | — | — |
| 2001 | 84° | 55° | 70° | — | — |
| 2000 | 89° | 58° | 73° | — | — |
| 1999 | 88° | 58° | 73° | — | — |
| 1998 | 79° | 60° | 69° | — | — |
| 1997 | 87° | 60° | 74° | — | — |
| 1996 | 85° | 55° | 70° | — | — |
| 1995 | 87° | 60° | 74° | 0.03" | — |
| 1994 | 90° | 64° | 77° | 0.08" | — |
| 1993 | 95° | 54° | 74° | — | — |
| 1992coldest | 62° | 48° | 55° | 0.46" | — |
| 1991 | 89° | 60° | 75° | — | — |
| 1990 | 88° | 52° | 70° | — | — |
| 1989 | 92° | 49° | 70° | — | — |
| 1988 | 88° | 54° | 71° | — | — |
| 1987 | 79° | 53° | 66° | — | — |
| 1986 | 85° | 59° | 72° | — | — |
| 1985 | 92° | 46° | 69° | — | — |
| 1984 | 84° | 53° | 69° | 0.03" | — |
| 1983 | 91° | 56° | 73° | — | — |
| 1982 | 79° | 57° | 68° | — | — |
| 1981 | 89° | 57° | 73° | 0.08" | — |
| 1980 | 78° | 60° | 69° | 0.18" | — |
| 1979 | 65° | 50° | 57° | — | — |
| 1978 | 83° | 57° | 70° | — | — |
| 1977 | 86° | 58° | 72° | — | — |
| 1976 | 85° | 55° | 70° | — | — |
| 1975 | 85° | 44° | 64° | — | — |
| 1974 | 87° | 57° | 72° | — | — |
| 1973 | 91° | 58° | 74° | — | — |
| 1972 | 70° | 43° | 56° | — | — |
| 1971 | 88° | 56° | 72° | — | — |
55 years of data from BOULDER MUNI AP