Weather on September 25
Santa Clara, CA
55 Years of Data
Avg High
81°F
Avg Low
57°F
Warmest
2019
81°F avg
Coldest
1986
61°F avg
About This Date
September 25th 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 25th was in 2019 (81°F average), while the coldest was 1986 (61°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 13% of September 25th dates historically, with the wettest September 25th recording 1.35" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for September 25th in Santa Clara, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 62° | 73° | 0.08" | — |
| 2024 | 79° | 59° | 69° | — | — |
| 2023 | 82° | 55° | 69° | — | — |
| 2022 | 79° | 59° | 69° | — | — |
| 2021 | 74° | 57° | 65° | — | — |
| 2020 | 79° | 56° | 67° | — | — |
| 2019warmest | 99° | 64° | 81° | — | — |
| 2018 | 82° | 53° | 68° | — | — |
| 2017 | 87° | 55° | 71° | — | — |
| 2016 | 97° | 59° | 78° | — | — |
| 2015 | 86° | 61° | 73° | — | — |
| 2014 | 73° | 57° | 65° | 0.91" | — |
| 2013 | 70° | 55° | 62° | — | — |
| 2012 | 78° | 51° | 65° | — | — |
| 2011 | 72° | 59° | 65° | — | — |
| 2010 | 94° | 57° | 75° | — | — |
| 2009 | 87° | 57° | 72° | — | — |
| 2008 | 88° | 58° | 73° | — | — |
| 2007 | 85° | 51° | 68° | — | — |
| 2006 | 86° | 56° | 71° | — | — |
| 2005 | 76° | 51° | 63° | — | — |
| 2004 | 80° | 57° | 69° | — | — |
| 2003 | 71° | 59° | 65° | — | — |
| 2002 | 84° | 59° | 72° | — | — |
| 2001 | 78° | 58° | 68° | 0.33" | — |
| 2000 | 85° | 57° | 71° | — | — |
| 1999 | 86° | 56° | 71° | — | — |
| 1998 | 72° | 58° | 65° | — | — |
| 1997 | 94° | 67° | 80° | — | — |
| 1996 | 76° | 52° | 64° | — | — |
| 1995 | 74° | 60° | 67° | — | — |
| 1994 | 79° | 61° | 70° | — | — |
| 1993 | 90° | 52° | 71° | — | — |
| 1992 | 88° | 56° | 72° | — | — |
| 1991 | 78° | 61° | 69° | 0.15" | — |
| 1990 | 76° | 62° | 69° | — | — |
| 1989 | 76° | 54° | 65° | — | — |
| 1988 | 74° | 58° | 66° | — | — |
| 1987 | 72° | 58° | 65° | — | — |
| 1986coldest | 70° | 52° | 61° | 0.08" | — |
| 1985 | 87° | 60° | 74° | — | — |
| 1984 | 83° | 50° | 66° | — | — |
| 1983 | 80° | 61° | 70° | — | — |
| 1982 | 75° | 60° | 68° | 1.35" | — |
| 1981 | 92° | 58° | 75° | 0.05" | — |
| 1980 | 88° | 58° | 73° | — | — |
| 1979 | 75° | 61° | 68° | — | — |
| 1978 | 94° | 63° | 78° | — | — |
| 1977 | 80° | 52° | 66° | — | — |
| 1976 | 71° | 57° | 64° | — | — |
| 1975 | 88° | 53° | 70° | — | — |
| 1974 | 74° | 53° | 63° | — | — |
| 1973 | 83° | 49° | 66° | — | — |
| 1972 | — | 45° | — | — | — |
| 1971 | 71° | 56° | 63° | — | — |
55 years of data from SANTA CLARA UNIV