Weather on September 11
Santa Clara, CA
55 Years of Data
Avg High
82°F
Avg Low
58°F
Warmest
2017
83°F avg
Coldest
1985
62°F avg
About This Date
September 11th in Santa Clara, CA typically brings warm fall weather, with average highs around 82°F and lows near 58°F. Over 55 years of records, the warmest September 11th was in 2017 (83°F average), while the coldest was 1985 (62°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 11th 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 11th in Santa Clara, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 62° | 69° | — | — |
| 2024 | 78° | 57° | 68° | — | — |
| 2023 | 84° | 56° | 70° | — | — |
| 2022 | 84° | 66° | 75° | — | — |
| 2021 | 82° | 58° | 70° | — | — |
| 2020 | 77° | 57° | 67° | — | — |
| 2019 | 85° | 56° | 70° | — | — |
| 2018 | 81° | 55° | 68° | — | — |
| 2017warmest | 97° | 70° | 83° | 0.1" | — |
| 2016 | 76° | 57° | 66° | — | — |
| 2015 | 89° | 63° | 76° | — | — |
| 2014 | 89° | 57° | 73° | — | — |
| 2013 | 77° | 59° | 68° | — | — |
| 2012 | 82° | 52° | 67° | — | — |
| 2011 | 80° | 61° | 70° | — | — |
| 2010 | 87° | 57° | 72° | — | — |
| 2009 | 91° | 62° | 77° | — | — |
| 2008 | 79° | 58° | 68° | — | — |
| 2007 | 74° | 59° | 66° | — | — |
| 2006 | 87° | 58° | 72° | — | — |
| 2005 | 73° | 54° | 63° | — | — |
| 2004 | 85° | 58° | 71° | — | — |
| 2003 | 93° | 60° | 77° | — | — |
| 2002 | 85° | 60° | 72° | — | — |
| 2001 | 77° | 60° | 69° | — | — |
| 2000 | 87° | 53° | 70° | — | — |
| 1999 | 74° | 54° | 64° | — | — |
| 1998 | 88° | 58° | 73° | — | — |
| 1997 | 82° | 65° | 73° | — | — |
| 1996 | 81° | 59° | 70° | — | — |
| 1995 | 79° | 60° | 69° | — | — |
| 1994 | 74° | 54° | 64° | — | — |
| 1993 | 76° | 58° | 67° | — | — |
| 1992 | 79° | 61° | 70° | — | — |
| 1991 | 79° | 59° | 69° | — | — |
| 1990 | 78° | 61° | 69° | — | — |
| 1989 | 72° | 60° | 66° | — | — |
| 1988 | 90° | 54° | 72° | — | — |
| 1987 | 75° | 54° | 64° | — | — |
| 1986 | 85° | 55° | 70° | — | — |
| 1985coldest | 74° | 50° | 62° | — | — |
| 1984 | 81° | 59° | 70° | — | — |
| 1983 | 95° | 50° | 73° | — | — |
| 1982 | 87° | 53° | 70° | — | — |
| 1981 | 79° | 58° | 68° | — | — |
| 1980 | 73° | 59° | 66° | — | — |
| 1979 | 100° | 60° | 80° | — | — |
| 1978 | 77° | 54° | 65° | — | — |
| 1977 | 76° | 52° | 64° | — | — |
| 1976 | 77° | 61° | 69° | — | — |
| 1975 | 72° | 57° | 64° | — | — |
| 1974 | 93° | 57° | 75° | — | — |
| 1973 | 76° | 61° | 68° | — | — |
| 1972 | 76° | 51° | 63° | — | — |
| 1971 | 87° | 55° | 71° | — | — |
55 years of data from SANTA CLARA UNIV