Weather on September 3
Hayward, CA
55 Years of Data
Avg High
77°F
Avg Low
57°F
Warmest
2017
83°F avg
Coldest
1973
60°F avg
About This Date
September 3rd in Hayward, CA typically brings pleasant fall weather, with average highs around 77°F and lows near 57°F. Over 53 years of records, the warmest September 3rd was in 2017 (83°F average), while the coldest was 1973 (60°F) — a 23°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 3rd in Hayward, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 59° | 68° | — | — |
| 2024 | 92° | 57° | 74° | — | — |
| 2023 | 74° | 64° | 69° | — | — |
| 2022 | 81° | 59° | 70° | — | — |
| 2021 | 72° | 55° | 63° | — | — |
| 2020 | 70° | 61° | 65° | — | — |
| 2019 | 76° | 60° | 68° | — | — |
| 2018 | 75° | 59° | 67° | — | — |
| 2017warmest | 95° | 71° | 83° | — | — |
| 2016 | 66° | 58° | 62° | — | — |
| 2015 | 70° | 59° | 64° | — | — |
| 2014 | 80° | 63° | 71° | — | — |
| 2013 | 74° | 59° | 66° | — | — |
| 2012 | 83° | 54° | 68° | — | — |
| 2011 | 74° | 55° | 64° | — | — |
| 2010 | 80° | 56° | 68° | — | — |
| 2009 | 85° | 61° | 73° | — | — |
| 2008 | 92° | 60° | 76° | — | — |
| 2007 | 75° | 59° | 67° | — | — |
| 2006 | 67° | 56° | 61° | — | — |
| 2005 | 67° | 55° | 61° | — | — |
| 2004 | 89° | 57° | 73° | — | — |
| 2003 | 75° | 62° | 69° | — | — |
| 2002 | 76° | 57° | 66° | — | — |
| 2001 | 77° | 58° | 67° | — | — |
| 2000 | 69° | 56° | 62° | — | — |
| 1999 | 69° | 56° | 62° | — | — |
| 1998 | 94° | 64° | 79° | — | — |
| 1997 | 81° | 59° | 70° | — | — |
| 1996 | 66° | 53° | 60° | — | — |
| 1995 | 70° | 54° | 62° | — | — |
| 1994 | 75° | 54° | 64° | — | — |
| 1993 | 71° | 54° | 62° | — | — |
| 1992 | 67° | 54° | 60° | — | — |
| 1989 | 84° | 51° | 68° | — | — |
| 1988 | 74° | 55° | 64° | — | — |
| 1987 | 76° | 61° | 68° | — | — |
| 1986 | 70° | 56° | 63° | — | — |
| 1985 | 68° | 53° | 61° | — | — |
| 1984 | 90° | 54° | 72° | — | — |
| 1983 | 83° | 55° | 69° | — | — |
| 1982 | 80° | 56° | 68° | — | — |
| 1981 | 76° | 56° | 66° | — | — |
| 1980 | 70° | 54° | 62° | — | — |
| 1979 | 78° | 60° | 69° | — | — |
| 1978 | 79° | 59° | 69° | — | — |
| 1977 | 71° | 54° | 62° | — | — |
| 1976 | 77° | 54° | 65° | — | — |
| 1975 | 84° | 49° | 66° | — | — |
| 1974 | 73° | 52° | 62° | — | — |
| 1973coldest | 74° | 47° | 60° | — | — |
| 1972 | 72° | 56° | 64° | — | — |
| 1971 | 77° | 52° | 64° | — | — |
53 years of data from HAYWARD AIR TERMINAL