Weather on May 17
Hayward, CA
55 Years of Data
Avg High
68°F
Avg Low
51°F
Warmest
1997
84°F avg
Coldest
1974
50°F avg
About This Date
May 17th in Hayward, CA typically brings mild spring weather, with average highs around 68°F and lows near 51°F. Over 52 years of records, the warmest May 17th was in 1997 (84°F average), while the coldest was 1974 (50°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 8% of May 17th dates historically, with the wettest May 17th recording 0.66" of rain. The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.1°F warmer on this date compared to 20-30 years ago.
Planning for May 17th in Hayward, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 56° | 62° | — | — |
| 2024 | 71° | 56° | 63° | — | — |
| 2023 | 69° | 53° | 61° | — | — |
| 2022 | 68° | 51° | 60° | — | — |
| 2021 | 61° | 52° | 56° | — | — |
| 2020 | 78° | 58° | 68° | 0.66" | — |
| 2019 | 64° | 53° | 59° | — | — |
| 2018 | 65° | 56° | 60° | — | — |
| 2017 | 70° | 53° | 61° | — | — |
| 2016 | 90° | 55° | 72° | — | — |
| 2015 | 62° | 55° | 59° | — | — |
| 2014 | 65° | 52° | 58° | — | — |
| 2013 | 65° | 54° | 59° | — | — |
| 2012 | 62° | 52° | 57° | — | — |
| 2011 | 60° | 52° | 56° | 0.25" | — |
| 2010 | 64° | 53° | 59° | 0.38" | — |
| 2009 | 94° | 60° | 77° | — | — |
| 2008 | 80° | 56° | 68° | — | — |
| 2007 | 61° | 51° | 56° | — | — |
| 2006 | 66° | 54° | 60° | — | — |
| 2005 | 63° | 55° | 59° | — | — |
| 2004 | 65° | 55° | 60° | — | — |
| 2003 | 67° | 50° | 58° | — | — |
| 2002 | 64° | 50° | 57° | — | — |
| 2001 | 74° | 53° | 63° | — | — |
| 2000 | 67° | 54° | 60° | — | — |
| 1999 | 64° | 48° | 56° | — | — |
| 1998 | 66° | 44° | 55° | — | — |
| 1997warmest | 96° | 72° | 84° | — | — |
| 1996 | 62° | 55° | 59° | — | — |
| 1995 | 66° | 56° | 61° | — | — |
| 1994 | 61° | 48° | 54° | — | — |
| 1993 | 64° | 51° | 58° | — | — |
| 1989 | 74° | 52° | 63° | — | — |
| 1988 | 59° | 45° | 52° | 0.58" | — |
| 1987 | 60° | 52° | 56° | — | — |
| 1986 | 80° | 50° | 65° | — | — |
| 1985 | 65° | 52° | 58° | — | — |
| 1984 | 70° | 46° | 58° | — | — |
| 1983 | 74° | 48° | 61° | — | — |
| 1982 | 71° | 50° | 61° | — | — |
| 1981 | 70° | 46° | 58° | — | — |
| 1980 | 69° | 48° | 59° | — | — |
| 1979 | 69° | 49° | 59° | — | — |
| 1978 | 79° | 44° | 61° | — | — |
| 1977 | 64° | 43° | 53° | — | — |
| 1976 | 60° | 44° | 52° | — | — |
| 1975 | 65° | 46° | 55° | — | — |
| 1974coldest | 63° | 37° | 50° | — | — |
| 1973 | 72° | 53° | 62° | — | — |
| 1972 | 66° | 48° | 57° | — | — |
| 1971 | 66° | 43° | 54° | — | — |
52 years of data from HAYWARD AIR TERMINAL