Weather on September 12
Santa Clara, CA
55 Years of Data
Avg High
81°F
Avg Low
57°F
Warmest
1979
83°F avg
Coldest
1975
61°F avg
About This Date
September 12th in Santa Clara, CA typically brings warm fall weather, with average highs around 81°F and lows near 57°F. Over 55 years of records, the warmest September 12th was in 1979 (83°F average), while the coldest was 1975 (61°F) — a 22°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
Planning for September 12th in Santa Clara, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 61° | 69° | — | — |
| 2024 | 84° | 59° | 72° | — | — |
| 2023 | 82° | 60° | 71° | — | — |
| 2022 | 81° | 64° | 72° | — | — |
| 2021 | 88° | 57° | 72° | — | — |
| 2020 | 83° | 58° | 70° | — | — |
| 2019 | 92° | 58° | 75° | — | — |
| 2018 | 76° | 54° | 65° | — | — |
| 2017 | 92° | 67° | 79° | — | — |
| 2016 | 76° | 57° | 66° | — | — |
| 2015 | 78° | 60° | 69° | — | — |
| 2014 | 85° | 59° | 72° | — | — |
| 2013 | 76° | 62° | 69° | — | — |
| 2012 | 76° | 53° | 64° | — | — |
| 2011 | 77° | 62° | 70° | — | — |
| 2010 | 75° | 55° | 65° | — | — |
| 2009 | 73° | 60° | 67° | — | — |
| 2008 | 74° | 57° | 65° | — | — |
| 2007 | 73° | 61° | 67° | — | — |
| 2006 | 94° | 61° | 77° | — | — |
| 2005 | 72° | 53° | 62° | — | — |
| 2004 | 77° | 62° | 70° | — | — |
| 2003 | 97° | 64° | 80° | — | — |
| 2002 | 75° | 57° | 66° | — | — |
| 2001 | 72° | 56° | 64° | — | — |
| 2000 | 87° | 57° | 72° | — | — |
| 1999 | 75° | 54° | 64° | — | — |
| 1998 | 89° | 61° | 75° | — | — |
| 1997 | 83° | 60° | 71° | — | — |
| 1996 | 80° | 53° | 67° | — | — |
| 1995 | 80° | 60° | 70° | — | — |
| 1994 | 77° | 54° | 65° | — | — |
| 1993 | 81° | 54° | 67° | — | — |
| 1992 | 80° | 58° | 69° | — | — |
| 1991 | 79° | 57° | 68° | — | — |
| 1990 | 85° | 55° | 70° | — | — |
| 1989 | 83° | 57° | 70° | — | — |
| 1988 | 80° | 54° | 67° | — | — |
| 1987 | 72° | 57° | 64° | — | — |
| 1986 | 76° | 55° | 65° | — | — |
| 1985 | 77° | 51° | 64° | — | — |
| 1984 | 83° | 54° | 68° | — | — |
| 1983 | 99° | 63° | 81° | — | — |
| 1982 | 89° | 55° | 72° | — | — |
| 1981 | 77° | 57° | 67° | — | — |
| 1980 | 75° | 58° | 66° | — | — |
| 1979warmest | 101° | 65° | 83° | — | — |
| 1978 | 84° | 54° | 69° | — | — |
| 1977 | 76° | 56° | 66° | — | — |
| 1976 | 74° | 57° | 65° | — | — |
| 1975coldest | 70° | 53° | 61° | — | — |
| 1974 | 91° | 53° | 72° | — | — |
| 1973 | 75° | 56° | 65° | — | — |
| 1972 | 77° | 51° | 64° | — | — |
| 1971 | 96° | 56° | 76° | — | — |
55 years of data from SANTA CLARA UNIV