Weather on April 18
Hayward, CA
55 Years of Data
Avg High
66°F
Avg Low
46°F
Warmest
2016
70°F avg
Coldest
1995
31°F avg
About This Date
April 18th in Hayward, CA typically brings mild spring weather, with average highs around 66°F and lows near 46°F. Over 51 years of records, the warmest April 18th was in 2016 (70°F average), while the coldest was 1995 (31°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 16% of April 18th dates historically, with the wettest April 18th recording 0.64" of rain. The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
Planning for April 18th in Hayward, CA? Great weather for outdoor activities.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 54° | 61° | — | — |
| 2024 | 75° | 54° | 64° | — | — |
| 2023 | 59° | 46° | 53° | — | — |
| 2022 | 69° | 41° | 55° | — | — |
| 2021 | 79° | 47° | 63° | — | — |
| 2020 | 64° | 54° | 59° | — | — |
| 2019 | 80° | 50° | 65° | — | — |
| 2018 | 59° | 47° | 53° | — | — |
| 2017 | 67° | 55° | 61° | 0.03" | — |
| 2016warmest | 84° | 56° | 70° | — | — |
| 2015 | 70° | 49° | 59° | — | — |
| 2014 | 65° | 50° | 57° | — | — |
| 2013 | 74° | 45° | 59° | — | — |
| 2012 | 65° | 52° | 58° | — | — |
| 2011 | 62° | 54° | 58° | 0.1" | — |
| 2010 | 75° | 48° | 62° | — | — |
| 2009 | 77° | 50° | 64° | — | — |
| 2008 | 62° | 48° | 55° | — | — |
| 2007 | 59° | 45° | 52° | — | — |
| 2006 | 67° | 43° | 55° | — | — |
| 2005 | 63° | 46° | 54° | — | — |
| 2004 | 59° | 49° | 54° | 0.05" | — |
| 2003 | 63° | 46° | 54° | — | — |
| 2002 | 62° | 43° | 52° | — | — |
| 2001 | 64° | 50° | 57° | 0.15" | — |
| 2000 | 64° | 47° | 55° | — | — |
| 1999 | 67° | 50° | 58° | — | — |
| 1998 | 64° | 45° | 54° | — | — |
| 1997 | 68° | 51° | 60° | — | — |
| 1996 | 60° | 45° | 52° | — | — |
| 1995coldest | 62° | 0° | 31° | — | — |
| 1994 | 68° | 53° | 61° | — | — |
| 1993 | 61° | 47° | 54° | — | — |
| 1989 | 63° | 52° | 57° | — | — |
| 1987 | 62° | 46° | 54° | — | — |
| 1986 | 65° | 42° | 53° | — | — |
| 1985 | 61° | 49° | 55° | — | — |
| 1984 | 59° | 48° | 54° | 0.18" | — |
| 1983 | 71° | 53° | 62° | 0.64" | — |
| 1982 | 66° | 45° | 55° | — | — |
| 1981 | 62° | 51° | 57° | — | — |
| 1980 | 67° | 50° | 58° | — | — |
| 1979 | 61° | 38° | 49° | — | — |
| 1978 | 65° | 43° | 54° | — | — |
| 1977 | 79° | 45° | 62° | — | — |
| 1976 | 61° | 41° | 51° | 0.05" | — |
| 1975 | 60° | 35° | 48° | — | — |
| 1974 | 58° | 36° | 47° | 0.08" | — |
| 1973 | 62° | 36° | 49° | — | — |
| 1972 | 63° | 38° | 50° | — | — |
| 1971 | 57° | 39° | 48° | — | — |
51 years of data from HAYWARD AIR TERMINAL