Weather on September 21
Tracy, CA
55 Years of Data
Avg High
87°F
Avg Low
54°F
Warmest
1995
78°F avg
Coldest
2004
59°F avg
About This Date
September 21st in Tracy, CA typically brings warm fall weather, with average highs around 87°F and lows near 54°F — a 33°F daily swing. Over 55 years of records, the warmest September 21st was in 1995 (78°F average), while the coldest was 2004 (59°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 21st dates historically. 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 September 21st in Tracy, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 60° | 73° | — | — |
| 2024 | 88° | 48° | 68° | — | — |
| 2023 | 85° | 50° | 67° | — | — |
| 2022 | 79° | 55° | 67° | — | — |
| 2021 | 86° | 54° | 70° | — | — |
| 2020 | 90° | 53° | 71° | — | — |
| 2019 | 84° | 52° | 68° | — | — |
| 2018 | 90° | 60° | 75° | — | — |
| 2017 | 78° | 54° | 66° | — | — |
| 2016 | 94° | 61° | 77° | — | — |
| 2015 | 97° | 55° | 76° | — | — |
| 2014 | 89° | 58° | 73° | — | — |
| 2013 | 80° | 50° | 65° | — | — |
| 2012 | 87° | 48° | 68° | — | — |
| 2011 | 95° | 59° | 77° | — | — |
| 2010 | 83° | 52° | 67° | — | — |
| 2009 | 97° | 57° | 77° | — | — |
| 2008 | 77° | 50° | 64° | — | — |
| 2007 | 72° | 49° | 60° | — | — |
| 2006 | 84° | 55° | 70° | — | — |
| 2005 | 86° | 56° | 71° | 0.25" | — |
| 2004coldest | 74° | 44° | 59° | — | — |
| 2003 | 95° | 56° | 75° | — | — |
| 2002 | 95° | 56° | 75° | — | — |
| 2001 | 88° | 57° | 72° | — | — |
| 2000 | 99° | 56° | 77° | — | — |
| 1999 | 88° | 51° | 69° | 0.33" | — |
| 1998 | 85° | 48° | 66° | — | — |
| 1997 | 90° | 55° | 72° | — | — |
| 1996 | 92° | 56° | 74° | — | — |
| 1995warmest | 98° | 58° | 78° | — | — |
| 1994 | 95° | 55° | 75° | — | — |
| 1993 | 85° | 49° | 67° | — | — |
| 1992 | 94° | 53° | 73° | — | — |
| 1991 | 92° | — | — | — | — |
| 1990 | 89° | 47° | 68° | — | — |
| 1989 | 84° | 52° | 68° | — | — |
| 1988 | 82° | 52° | 67° | — | — |
| 1987 | 98° | 53° | 76° | — | — |
| 1986 | 77° | 52° | 64° | — | — |
| 1985 | 84° | 50° | 67° | — | — |
| 1984 | 93° | 59° | 76° | — | — |
| 1983 | 90° | 65° | 77° | — | — |
| 1982 | 79° | 52° | 65° | — | — |
| 1981 | 89° | 57° | 73° | — | — |
| 1980 | 82° | 50° | 66° | — | — |
| 1979 | 93° | 55° | 74° | — | — |
| 1978 | 81° | 49° | 65° | — | — |
| 1977 | 78° | 52° | 65° | — | — |
| 1976 | 86° | 49° | 67° | — | — |
| 1975 | 88° | 52° | 70° | — | — |
| 1974 | 95° | 53° | 74° | — | — |
| 1973 | 82° | 57° | 70° | — | — |
| 1972 | 93° | 54° | 73° | — | — |
| 1971 | 91° | 51° | 71° | — | — |
55 years of data from TRACY CARBONA