Weather on June 18
Hayward, CA
55 Years of Data
Avg High
74°F
Avg Low
54°F
Warmest
2017
85°F avg
Coldest
1975
56°F avg
About This Date
June 18th in Hayward, CA typically brings pleasant summer weather, with average highs around 74°F and lows near 54°F. Over 52 years of records, the warmest June 18th was in 2017 (85°F average), while the coldest was 1975 (56°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 18th dates historically. The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for June 18th 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 | 73° | 54° | 63° | — | — |
| 2024 | 81° | 57° | 69° | — | — |
| 2023 | 68° | 57° | 63° | — | — |
| 2022 | 67° | 55° | 61° | — | — |
| 2021 | 88° | 59° | 73° | — | — |
| 2020 | 88° | 59° | 73° | — | — |
| 2019 | 75° | 56° | 65° | — | — |
| 2018 | 74° | 56° | 65° | — | — |
| 2017warmest | 100° | 69° | 85° | — | — |
| 2016 | 75° | 57° | 66° | — | — |
| 2015 | 67° | 53° | 60° | — | — |
| 2014 | 83° | 52° | 67° | — | — |
| 2013 | 67° | 57° | 62° | — | — |
| 2012 | 70° | 53° | 61° | — | — |
| 2011 | 72° | 55° | 63° | — | — |
| 2010 | 62° | 54° | 58° | — | — |
| 2009 | 81° | 58° | 69° | — | — |
| 2008 | 80° | 54° | 67° | — | — |
| 2007 | 81° | 53° | 67° | — | — |
| 2006 | 67° | 55° | 61° | — | — |
| 2005 | 68° | 57° | 63° | 0.03" | — |
| 2004 | 71° | 60° | 66° | — | — |
| 2003 | 66° | 53° | 60° | — | — |
| 2002 | 68° | 58° | 63° | — | — |
| 2001 | 87° | 58° | 72° | — | — |
| 2000 | 70° | 58° | 64° | — | — |
| 1999 | 66° | 54° | 60° | — | — |
| 1998 | 77° | 51° | 64° | — | — |
| 1997 | 74° | 53° | 63° | — | — |
| 1996 | 77° | 54° | 65° | — | — |
| 1995 | 62° | 54° | 58° | — | — |
| 1994 | 76° | 49° | 62° | — | — |
| 1993 | 87° | 69° | 78° | — | — |
| 1989 | 79° | 54° | 66° | — | — |
| 1988 | 70° | 54° | 62° | — | — |
| 1987 | 66° | 53° | 60° | — | — |
| 1986 | 73° | 50° | 62° | — | — |
| 1985 | 70° | 54° | 62° | — | — |
| 1984 | 75° | 50° | 63° | — | — |
| 1983 | 70° | 48° | 59° | — | — |
| 1982 | 66° | 55° | 61° | — | — |
| 1981 | 89° | 56° | 72° | — | — |
| 1980 | 77° | 53° | 65° | — | — |
| 1979 | 69° | 50° | 60° | — | — |
| 1978 | 79° | 52° | 65° | — | — |
| 1977 | 64° | 51° | 58° | — | — |
| 1976 | 71° | 49° | 60° | — | — |
| 1975coldest | 66° | 46° | 56° | — | — |
| 1974 | 71° | 52° | 61° | — | — |
| 1973 | 71° | 45° | 58° | — | — |
| 1972 | 79° | 48° | 63° | — | — |
| 1971 | 85° | 53° | 69° | — | — |
52 years of data from HAYWARD AIR TERMINAL