Weather on August 23
Hayward, CA
55 Years of Data
Avg High
76°F
Avg Low
57°F
Warmest
2023
79°F avg
Coldest
1973
57°F avg
About This Date
August 23rd in Hayward, CA typically brings pleasant summer weather, with average highs around 76°F and lows near 57°F. Over 52 years of records, the warmest August 23rd was in 2023 (79°F average), while the coldest was 1973 (57°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 23rd dates historically. The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for August 23rd in Hayward, CA? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 57° | 64° | — | — |
| 2024 | 74° | 61° | 67° | — | — |
| 2023warmest | 92° | 66° | 79° | — | — |
| 2022 | 82° | 61° | 71° | — | — |
| 2021 | 74° | 58° | 66° | — | — |
| 2020 | 83° | 62° | 72° | — | — |
| 2019 | 80° | 60° | 70° | — | — |
| 2018 | 71° | 62° | 67° | — | — |
| 2017 | 73° | 60° | 67° | — | — |
| 2016 | 74° | 60° | 67° | — | — |
| 2015 | 74° | 62° | 68° | — | — |
| 2014 | 78° | 62° | 70° | — | — |
| 2013 | 65° | 56° | 60° | — | — |
| 2012 | 72° | 54° | 63° | — | — |
| 2011 | 90° | 57° | 73° | — | — |
| 2010 | 91° | 58° | 74° | — | — |
| 2009 | 70° | 57° | 63° | — | — |
| 2008 | 76° | 59° | 67° | — | — |
| 2007 | 78° | 57° | 68° | — | — |
| 2006 | 73° | 56° | 64° | — | — |
| 2005 | 75° | 54° | 64° | — | — |
| 2004 | 73° | 64° | 69° | — | — |
| 2003 | 79° | 59° | 69° | — | — |
| 2002 | 60° | 54° | 57° | — | — |
| 2001 | 75° | 61° | 68° | — | — |
| 2000 | 68° | 60° | 64° | — | — |
| 1999 | 77° | 58° | 67° | — | — |
| 1998 | 82° | 53° | 68° | — | — |
| 1997 | 73° | 58° | 65° | — | — |
| 1996 | 85° | 58° | 71° | — | — |
| 1995 | 73° | 54° | 63° | — | — |
| 1994 | 68° | 55° | 62° | — | — |
| 1993 | 78° | 54° | 66° | — | — |
| 1989 | 70° | 57° | 63° | — | — |
| 1988 | 75° | 54° | 64° | — | — |
| 1987 | 74° | 53° | 63° | — | — |
| 1986 | 65° | 52° | 58° | — | — |
| 1985 | 76° | 52° | 64° | — | — |
| 1984 | 74° | 56° | 65° | — | — |
| 1983 | 75° | 59° | 67° | — | — |
| 1982 | 82° | 53° | 68° | — | — |
| 1981 | 69° | 55° | 62° | — | — |
| 1980 | 67° | 54° | 60° | — | — |
| 1979 | 77° | 58° | 67° | — | — |
| 1978 | 73° | 53° | 63° | — | — |
| 1977 | 84° | 52° | 68° | — | — |
| 1976 | 74° | 56° | 65° | 0.08" | — |
| 1975 | 79° | 51° | 65° | — | — |
| 1974 | 87° | 55° | 71° | — | — |
| 1973coldest | 66° | 48° | 57° | — | — |
| 1972 | 81° | 54° | 67° | — | — |
| 1971 | 76° | 52° | 64° | — | — |
52 years of data from HAYWARD AIR TERMINAL