Weather on August 9
Concord, CA
55 Years of Data
Avg High
90°F
Avg Low
58°F
Warmest
2002
82°F avg
Coldest
2013
66°F avg
About This Date
August 9th in Concord, CA typically brings hot summer weather, with average highs around 90°F and lows near 58°F — a 32°F daily swing. Over 55 years of records, the warmest August 9th was in 2002 (82°F average), while the coldest was 2013 (66°F) — a 16°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for August 9th in Concord, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 61° | 79° | — | — |
| 2024 | 93° | 58° | 75° | — | — |
| 2023 | 86° | 58° | 72° | — | — |
| 2022 | 83° | 61° | 72° | — | — |
| 2021 | 93° | 59° | 76° | — | — |
| 2020 | 98° | 59° | 79° | — | — |
| 2019 | 85° | 62° | 73° | — | — |
| 2018 | 99° | 57° | 78° | — | — |
| 2017 | 81° | 61° | 71° | — | — |
| 2016 | 90° | 58° | 74° | — | — |
| 2015 | 91° | 61° | 76° | — | — |
| 2014 | 80° | 58° | 69° | — | — |
| 2013coldest | 77° | 56° | 66° | — | — |
| 2012 | 100° | 55° | 78° | — | — |
| 2011 | 90° | 55° | 72° | — | — |
| 2010 | 81° | 55° | 68° | — | — |
| 2009 | 97° | 58° | 77° | — | — |
| 2008 | 85° | 56° | 70° | — | — |
| 2007 | 88° | 58° | 73° | — | — |
| 2006 | 99° | 62° | 80° | — | — |
| 2005 | 90° | 57° | 73° | — | — |
| 2004 | 87° | 58° | 72° | — | — |
| 2003 | 86° | 62° | 74° | — | — |
| 2002warmest | 103° | 61° | 82° | — | — |
| 2001 | 77° | 58° | 67° | — | — |
| 2000 | 82° | 58° | 70° | — | — |
| 1999 | 79° | 58° | 68° | — | — |
| 1998 | 84° | 56° | 70° | — | — |
| 1997 | 87° | 61° | 74° | — | — |
| 1996 | 99° | 58° | 78° | — | — |
| 1995 | 96° | 63° | 79° | — | — |
| 1994 | 86° | 58° | 72° | — | — |
| 1993 | 84° | 57° | 71° | — | — |
| 1992 | 93° | 59° | 76° | — | — |
| 1991 | 93° | 58° | 75° | — | — |
| 1990 | 99° | 61° | 80° | — | — |
| 1989 | 90° | 54° | 72° | — | — |
| 1988 | 90° | 60° | 75° | — | — |
| 1987 | 86° | 52° | 69° | — | — |
| 1986 | 88° | 51° | 69° | — | — |
| 1985 | 94° | 52° | 73° | — | — |
| 1984 | 102° | 57° | 80° | — | — |
| 1983 | 91° | 55° | 73° | — | — |
| 1982 | 85° | 53° | 69° | — | — |
| 1981 | 88° | 54° | 71° | — | — |
| 1980 | 89° | 63° | 76° | — | — |
| 1979 | 95° | 62° | 79° | — | — |
| 1978 | 100° | 56° | 78° | — | — |
| 1977 | 85° | 53° | 69° | — | — |
| 1976 | 92° | 51° | 71° | — | — |
| 1975 | 98° | 52° | 75° | — | — |
| 1974 | 86° | 57° | 72° | — | — |
| 1973 | 86° | 57° | 72° | — | — |
| 1972 | 90° | 59° | 74° | — | — |
| 1971 | 98° | 63° | 80° | — | — |
55 years of data from CONCORD BUCHANAN FLD