Weather on August 29
Boulder, CO
55 Years of Data
Avg High
85°F
Avg Low
55°F
Warmest
2010
79°F avg
Coldest
1974
62°F avg
About This Date
August 29th in Boulder, CO typically brings warm summer weather, with average highs around 85°F and lows near 55°F — a 30°F daily swing. Over 55 years of records, the warmest August 29th was in 2010 (79°F average), while the coldest was 1974 (62°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 15% of August 29th dates historically, with the wettest August 29th recording 0.53" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for August 29th 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 | 82° | 57° | 70° | — | — |
| 2024 | 84° | 63° | 73° | — | — |
| 2023 | 82° | 55° | 69° | — | — |
| 2022 | 86° | 59° | 73° | — | — |
| 2021 | 82° | 59° | 71° | — | — |
| 2020 | 79° | 54° | 66° | — | — |
| 2019 | 88° | 63° | 75° | — | — |
| 2018 | 90° | 52° | 71° | — | — |
| 2017 | 91° | 56° | 73° | — | — |
| 2016 | 84° | 61° | 72° | — | — |
| 2015 | 91° | 54° | 72° | — | — |
| 2014 | 81° | 50° | 65° | 0.53" | — |
| 2013 | 94° | 63° | 78° | — | — |
| 2012 | 95° | 60° | 78° | — | — |
| 2011 | 87° | 57° | 72° | — | — |
| 2010warmest | 91° | 67° | 79° | — | — |
| 2009 | 81° | 50° | 65° | — | — |
| 2008 | 82° | 50° | 66° | — | — |
| 2007 | 82° | 53° | 68° | — | — |
| 2006 | 83° | 46° | 64° | — | — |
| 2005 | 90° | 53° | 71° | — | — |
| 2004 | 80° | 44° | 62° | — | — |
| 2003 | 77° | 54° | 65° | — | — |
| 2002 | 76° | 54° | 65° | 0.15" | — |
| 2001 | 88° | 57° | 72° | — | — |
| 2000 | 82° | 57° | 70° | 0.28" | — |
| 1999 | 84° | 53° | 69° | — | — |
| 1998 | 90° | 54° | 72° | — | — |
| 1997 | 86° | 58° | 72° | 0.03" | — |
| 1996 | 80° | 52° | 66° | — | — |
| 1995 | 91° | 59° | 75° | — | — |
| 1994 | 86° | 53° | 70° | — | — |
| 1993 | 86° | 48° | 67° | — | — |
| 1992 | 77° | 57° | 67° | — | — |
| 1991 | 86° | 55° | 71° | — | — |
| 1990 | 92° | 55° | 73° | — | — |
| 1989 | 89° | 50° | 70° | — | — |
| 1988 | 82° | 53° | 68° | — | — |
| 1987 | 84° | 50° | 67° | — | — |
| 1986 | 87° | 57° | 72° | — | — |
| 1985 | 91° | 60° | 76° | — | — |
| 1984 | 91° | 60° | 76° | — | — |
| 1983 | 88° | 56° | 72° | — | — |
| 1982 | 87° | 56° | 71° | 0.05" | — |
| 1981 | 87° | 52° | 69° | — | — |
| 1980 | 87° | 58° | 72° | — | — |
| 1979 | 86° | 54° | 70° | — | — |
| 1978 | 76° | 53° | 64° | — | — |
| 1977 | 82° | 46° | 64° | — | — |
| 1976 | 84° | 53° | 69° | — | — |
| 1975 | 87° | 56° | 71° | — | — |
| 1974coldest | 73° | 51° | 62° | 0.2" | — |
| 1973 | 84° | 53° | 69° | — | — |
| 1972 | 78° | 56° | 67° | 0.03" | — |
| 1971 | 81° | 59° | 70° | 0.13" | — |
55 years of data from BOULDER MUNI AP