Weather on December 31
San Jose, CA
55 Years of Data
Avg High
57°F
Avg Low
42°F
Warmest
1996
62°F avg
Coldest
1987
40°F avg
About This Date
December 31st in San Jose, CA typically brings cool winter weather, with average highs around 57°F and lows near 42°F. Over 55 years of records, the warmest December 31st was in 1996 (62°F average), while the coldest was 1987 (40°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 31st dates historically, with the wettest December 31st recording 2.9" of rain. The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in San Jose, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 53° | 45° | 49° | 0.71" | — |
| 2024 | 62° | 39° | 51° | — | — |
| 2023 | 61° | 49° | 55° | — | — |
| 2022 | 62° | 51° | 57° | 2.9" | — |
| 2021 | 53° | 37° | 45° | — | — |
| 2020 | 59° | 43° | 51° | 0.13" | — |
| 2019 | 64° | 38° | 51° | — | — |
| 2018 | 56° | 41° | 48° | — | — |
| 2017 | 61° | 44° | 52° | — | — |
| 2016 | 56° | 39° | 47° | — | — |
| 2015 | 53° | 38° | 45° | — | — |
| 2014 | 55° | 37° | 46° | — | — |
| 2013 | 59° | 37° | 48° | — | — |
| 2012 | 53° | 33° | 43° | — | — |
| 2011 | 61° | 42° | 51° | — | — |
| 2010 | 52° | 40° | 46° | — | — |
| 2009 | 62° | 49° | 55° | — | — |
| 2008 | 55° | 36° | 45° | — | — |
| 2007 | 61° | 40° | 50° | — | — |
| 2006 | 54° | 41° | 47° | — | — |
| 2005 | 62° | 49° | 55° | 1.19" | — |
| 2004 | 56° | 45° | 50° | 0.81" | — |
| 2003 | 57° | 45° | 51° | — | — |
| 2002 | 59° | 46° | 53° | 0.84" | — |
| 2001 | 64° | 49° | 56° | — | — |
| 2000 | 56° | 43° | 49° | — | — |
| 1999 | 53° | 38° | 45° | — | — |
| 1998 | 59° | 44° | 52° | 0.03" | — |
| 1997 | 62° | 46° | 54° | — | — |
| 1996warmest | 64° | 59° | 62° | 0.36" | — |
| 1995 | 63° | 55° | 59° | 0.03" | — |
| 1994 | 55° | 33° | 44° | 0.48" | — |
| 1993 | 63° | 42° | 52° | — | — |
| 1992 | 56° | 44° | 50° | — | — |
| 1991 | 59° | 40° | 49° | — | — |
| 1990 | 54° | 28° | 41° | — | — |
| 1989 | 57° | 37° | 47° | — | — |
| 1988 | 51° | 40° | 45° | 0.08" | — |
| 1987coldest | 48° | 32° | 40° | — | — |
| 1986 | 62° | 46° | 54° | — | — |
| 1985 | 59° | 50° | 55° | — | — |
| 1984 | 55° | 34° | 44° | — | — |
| 1983 | 63° | 53° | 58° | — | — |
| 1982 | 54° | 31° | 42° | — | — |
| 1981 | 58° | 51° | 54° | — | — |
| 1980 | 56° | 39° | 47° | — | — |
| 1979 | 65° | 56° | 60° | 0.13" | — |
| 1978 | 55° | 30° | 43° | — | — |
| 1977 | 56° | 43° | 49° | 0.03" | — |
| 1976 | 55° | 42° | 49° | 0.23" | — |
| 1975 | 52° | 39° | 45° | — | — |
| 1974 | 55° | 42° | 49° | — | — |
| 1973 | 54° | 38° | 46° | 0.13" | — |
| 1972 | 58° | 37° | 47° | — | — |
| 1971 | 53° | 33° | 43° | — | — |
55 years of data from SAN JOSE