Weather on July 18
Hayward, CA
55 Years of Data
Avg High
75°F
Avg Low
56°F
Warmest
1988
83°F avg
Coldest
1973
58°F avg
About This Date
July 18th in Hayward, CA typically brings pleasant summer weather, with average highs around 75°F and lows near 56°F. Over 52 years of records, the warmest July 18th was in 1988 (83°F average), while the coldest was 1973 (58°F) — a 25°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 July 18th in Hayward, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 59° | 64° | — | — |
| 2024 | 81° | 60° | 70° | — | — |
| 2023 | 76° | 58° | 67° | — | — |
| 2022 | 80° | 58° | 69° | — | — |
| 2021 | 81° | 55° | 68° | — | — |
| 2020 | 77° | 59° | 68° | — | — |
| 2019 | 76° | 58° | 67° | — | — |
| 2018 | 77° | 59° | 68° | — | — |
| 2017 | 69° | 58° | 63° | — | — |
| 2016 | 69° | 58° | 63° | — | — |
| 2015 | 75° | 60° | 68° | — | — |
| 2014 | 74° | 60° | 67° | — | — |
| 2013 | 75° | 55° | 65° | — | — |
| 2012 | 69° | 58° | 63° | — | — |
| 2011 | 75° | 54° | 64° | — | — |
| 2010 | 73° | 57° | 65° | — | — |
| 2009 | 81° | 57° | 69° | — | — |
| 2008 | 69° | 54° | 61° | — | — |
| 2007 | 74° | 62° | 68° | — | — |
| 2006 | 89° | 62° | 76° | — | — |
| 2005 | 73° | 58° | 65° | — | — |
| 2004 | 77° | 64° | 71° | — | — |
| 2003 | 87° | 60° | 74° | — | — |
| 2002 | 68° | 57° | 63° | — | — |
| 2001 | 75° | 56° | 65° | — | — |
| 2000 | 74° | 58° | 66° | — | — |
| 1999 | 70° | 55° | 62° | — | — |
| 1998 | 95° | 63° | 79° | — | — |
| 1997 | 76° | 53° | 64° | — | — |
| 1996 | 77° | 53° | 65° | — | — |
| 1995 | 75° | 58° | 66° | — | — |
| 1994 | 69° | 50° | 60° | — | — |
| 1993 | 78° | 51° | 65° | — | — |
| 1989 | 83° | 58° | 70° | — | — |
| 1988warmest | 103° | 64° | 83° | — | — |
| 1987 | 68° | 52° | 60° | — | — |
| 1986 | 66° | 54° | 60° | — | — |
| 1985 | 71° | 53° | 62° | — | — |
| 1984 | 80° | 59° | 70° | — | — |
| 1983 | 68° | 55° | 62° | — | — |
| 1982 | 70° | 57° | 63° | — | — |
| 1981 | 64° | 52° | 58° | — | — |
| 1980 | 76° | 54° | 65° | — | — |
| 1979 | 78° | 54° | 66° | — | — |
| 1978 | 90° | 56° | 73° | — | — |
| 1977 | 79° | 53° | 66° | — | — |
| 1976 | 70° | 50° | 60° | — | — |
| 1975 | 66° | 52° | 59° | — | — |
| 1974 | 74° | 54° | 64° | — | — |
| 1973coldest | 67° | 50° | 58° | — | — |
| 1972 | 71° | 57° | 64° | — | — |
| 1971 | 76° | 52° | 64° | — | — |
52 years of data from HAYWARD AIR TERMINAL