Weather on September 19
Santa Clara, CA
55 Years of Data
Avg High
81°F
Avg Low
56°F
Warmest
2000
81°F avg
Coldest
1975
61°F avg
About This Date
September 19th in Santa Clara, CA typically brings warm fall weather, with average highs around 81°F and lows near 56°F — a 25°F daily swing. Over 55 years of records, the warmest September 19th was in 2000 (81°F average), while the coldest was 1975 (61°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 19th dates historically, with the wettest September 19th recording 1.47" of rain. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for September 19th 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 | 81° | 62° | 71° | — | — |
| 2024 | 77° | 60° | 69° | — | — |
| 2023 | 80° | 59° | 70° | — | — |
| 2022 | 76° | 59° | 67° | — | — |
| 2021 | 77° | 59° | 68° | — | — |
| 2020 | 81° | 60° | 70° | — | — |
| 2019 | 78° | 56° | 67° | — | — |
| 2018 | 80° | 51° | 66° | — | — |
| 2017 | 77° | 58° | 67° | — | — |
| 2016 | 94° | 63° | 78° | — | — |
| 2015 | 88° | 55° | 71° | — | — |
| 2014 | 77° | 63° | 70° | — | — |
| 2013 | 87° | 54° | 70° | — | — |
| 2012 | 68° | 53° | 61° | — | — |
| 2011 | 93° | 59° | 76° | — | — |
| 2010 | 79° | 58° | 68° | — | — |
| 2009 | 86° | 60° | 73° | — | — |
| 2008 | 79° | 50° | 64° | — | — |
| 2007 | 68° | 54° | 61° | — | — |
| 2006 | 77° | 57° | 67° | — | — |
| 2005 | 86° | 53° | 70° | — | — |
| 2004 | 70° | 52° | 61° | 0.15" | — |
| 2003 | 89° | 58° | 73° | — | — |
| 2002 | 95° | 62° | 79° | — | — |
| 2001 | 78° | 55° | 67° | — | — |
| 2000warmest | 98° | 64° | 81° | — | — |
| 1999 | 72° | 58° | 65° | — | — |
| 1998 | 84° | 55° | 70° | — | — |
| 1997 | 83° | 54° | 68° | — | — |
| 1996 | 88° | 55° | 71° | — | — |
| 1995 | 96° | 61° | 78° | — | — |
| 1994 | 81° | 59° | 70° | — | — |
| 1993 | 79° | 51° | 65° | — | — |
| 1992 | 79° | 58° | 68° | — | — |
| 1991 | 77° | 55° | 66° | — | — |
| 1990 | 84° | 56° | 70° | — | — |
| 1989 | 75° | 49° | 62° | — | — |
| 1988 | 83° | 52° | 67° | — | — |
| 1987 | 85° | 53° | 69° | — | — |
| 1986 | 71° | 53° | 62° | — | — |
| 1985 | 80° | 57° | 69° | — | — |
| 1984 | 88° | 67° | 77° | — | — |
| 1983 | 89° | 55° | 72° | — | — |
| 1982 | 75° | 53° | 64° | — | — |
| 1981 | 80° | 58° | 69° | — | — |
| 1980 | 73° | 61° | 67° | — | — |
| 1979 | 79° | 56° | 67° | — | — |
| 1978 | 78° | 50° | 64° | — | — |
| 1977 | 73° | 54° | 63° | 1.47" | — |
| 1976 | 77° | 57° | 67° | — | — |
| 1975coldest | 70° | 53° | 61° | — | — |
| 1974 | 75° | 54° | 64° | — | — |
| 1973 | 80° | 63° | 71° | — | — |
| 1972 | 76° | 52° | 64° | — | — |
| 1971 | 87° | 53° | 70° | — | — |
55 years of data from SANTA CLARA UNIV