Weather on May 20
Stockton, CA
55 Years of Data
Avg High
82°F
Avg Low
51°F
Warmest
1978
77°F avg
Coldest
1994
54°F avg
About This Date
May 20th in Stockton, CA typically brings warm spring weather, with average highs around 82°F and lows near 51°F — a 31°F daily swing. Over 55 years of records, the warmest May 20th was in 1978 (77°F average), while the coldest was 1994 (54°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 20th dates historically, with the wettest May 20th recording 0.56" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in Stockton, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 56° | 73° | — | — |
| 2024 | 84° | 51° | 68° | — | — |
| 2023 | 84° | 53° | 69° | — | — |
| 2022 | 84° | 58° | 71° | — | — |
| 2021 | 71° | 47° | 59° | — | — |
| 2020 | 80° | 50° | 65° | — | — |
| 2019 | 71° | 46° | 59° | — | — |
| 2018 | 77° | 53° | 65° | — | — |
| 2017 | 96° | 54° | 75° | — | — |
| 2016 | 68° | 50° | 59° | — | — |
| 2015 | 76° | 51° | 63° | — | — |
| 2014 | 74° | 52° | 63° | — | — |
| 2013 | 92° | 55° | 73° | — | — |
| 2012 | 92° | 53° | 72° | — | — |
| 2011 | 82° | 50° | 66° | — | — |
| 2010 | 77° | 49° | 63° | — | — |
| 2009 | 87° | 52° | 69° | — | — |
| 2008 | 97° | 52° | 74° | — | — |
| 2007 | 86° | 58° | 72° | — | — |
| 2006 | 73° | 53° | 63° | — | — |
| 2005 | 76° | 54° | 65° | — | — |
| 2004 | 82° | 50° | 66° | — | — |
| 2003 | 88° | 63° | 75° | — | — |
| 2002 | 65° | 49° | 57° | 0.56" | — |
| 2001 | 100° | 52° | 76° | — | — |
| 2000 | 93° | 52° | 72° | — | — |
| 1999 | 78° | 54° | 66° | — | — |
| 1998 | 73° | 46° | 60° | — | — |
| 1997 | 95° | 59° | 77° | — | — |
| 1996 | 76° | 51° | 63° | — | — |
| 1995 | 89° | 53° | 71° | — | — |
| 1994coldest | 69° | 40° | 54° | — | — |
| 1993 | 85° | 60° | 72° | — | — |
| 1992 | 79° | 53° | 66° | — | — |
| 1991 | 74° | 43° | 58° | — | — |
| 1990 | 72° | 49° | 60° | — | — |
| 1989 | 82° | 41° | 62° | — | — |
| 1988 | 92° | 50° | 71° | — | — |
| 1987 | 77° | 45° | 61° | — | — |
| 1986 | 88° | 48° | 68° | — | — |
| 1985 | 85° | 49° | 67° | — | — |
| 1984 | 90° | 56° | 73° | — | — |
| 1983 | 94° | 55° | 74° | — | — |
| 1982 | 88° | 53° | 70° | — | — |
| 1981 | 68° | 45° | 56° | — | — |
| 1980 | 94° | 49° | 71° | — | — |
| 1979 | 84° | 54° | 69° | — | — |
| 1978warmest | 94° | 60° | 77° | — | — |
| 1977 | 79° | 51° | 65° | — | — |
| 1976 | 80° | 49° | 64° | — | — |
| 1975 | 81° | 53° | 67° | — | — |
| 1974 | 72° | 53° | 62° | — | — |
| 1973 | 84° | 50° | 67° | — | — |
| 1972 | 68° | 51° | 60° | — | — |
| 1971 | 83° | 46° | 64° | — | — |
55 years of data from STOCKTON FIRE STN 4