Weather on December 9
Hayward, CA
55 Years of Data
Avg High
59°F
Avg Low
44°F
Warmest
2014
61°F avg
Coldest
1972
28°F avg
About This Date
December 9th in Hayward, CA typically brings cool winter weather, with average highs around 59°F and lows near 44°F. Over 53 years of records, the warmest December 9th was in 2014 (61°F average), while the coldest was 1972 (28°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 23% of December 9th dates historically, with the wettest December 9th recording 1.47" of rain. 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 December 9th in Hayward, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 41° | 47° | — | — |
| 2024 | 69° | 40° | 54° | — | — |
| 2023 | 63° | 39° | 51° | — | — |
| 2022 | 56° | 43° | 49° | — | — |
| 2021 | 58° | 43° | 50° | 0.08" | — |
| 2020 | 70° | 43° | 56° | — | — |
| 2019 | 57° | 48° | 53° | — | — |
| 2018 | 56° | 46° | 51° | — | — |
| 2017 | 64° | 40° | 52° | — | — |
| 2016 | 65° | 57° | 61° | 0.03" | — |
| 2015 | 67° | 53° | 60° | — | — |
| 2014warmest | 67° | 55° | 61° | — | — |
| 2013 | 52° | 28° | 40° | — | — |
| 2012 | 65° | 43° | 54° | — | — |
| 2011 | 57° | 35° | 46° | — | — |
| 2010 | 62° | 56° | 59° | — | — |
| 2009 | 48° | 34° | 41° | — | — |
| 2008 | 59° | 39° | 49° | — | — |
| 2007 | 57° | 38° | 47° | — | — |
| 2006 | 64° | 53° | 59° | 0.84" | — |
| 2005 | 64° | 43° | 53° | — | — |
| 2004 | 63° | 49° | 56° | 0.05" | — |
| 2003 | 57° | 45° | 51° | 0.69" | — |
| 2002 | 59° | 50° | 55° | 0.2" | — |
| 2001 | 56° | 45° | 50° | 0.08" | — |
| 2000 | 57° | 49° | 53° | — | — |
| 1999 | 55° | 44° | 50° | 0.69" | — |
| 1998 | 60° | 37° | 49° | — | — |
| 1997 | 54° | 40° | 47° | — | — |
| 1996 | 56° | 52° | 54° | — | — |
| 1995 | 51° | 47° | 49° | — | — |
| 1994 | 62° | 51° | 57° | — | — |
| 1993 | 58° | 50° | 54° | — | — |
| 1992 | 56° | 52° | 54° | — | — |
| 1989 | 61° | 44° | 52° | — | — |
| 1988 | 70° | 48° | 59° | — | — |
| 1987 | 56° | 48° | 52° | 1.09" | — |
| 1986 | 61° | 41° | 51° | — | — |
| 1985 | 56° | 38° | 47° | — | — |
| 1984 | 66° | 48° | 57° | — | — |
| 1983 | 62° | 53° | 58° | 1.47" | — |
| 1982 | 60° | 45° | 52° | — | — |
| 1981 | 66° | 46° | 56° | — | — |
| 1980 | 58° | 39° | 48° | — | — |
| 1979 | 64° | 49° | 56° | — | — |
| 1978 | 52° | 32° | 42° | — | — |
| 1977 | 59° | 42° | 51° | — | — |
| 1976 | 66° | 44° | 55° | 0.05" | — |
| 1975 | 65° | 39° | 52° | — | — |
| 1974 | 54° | 39° | 46° | — | — |
| 1973 | 63° | 40° | 51° | — | — |
| 1972coldest | 38° | 18° | 28° | — | — |
| 1971 | 56° | 36° | 46° | 0.13" | — |
53 years of data from HAYWARD AIR TERMINAL