Weather on August 20
Stockton, CA
55 Years of Data
Avg High
90°F
Avg Low
56°F
Warmest
2022
83°F avg
Coldest
1987
64°F avg
About This Date
August 20th in Stockton, CA typically brings hot summer weather, with average highs around 90°F and lows near 56°F — a 34°F daily swing. Over 55 years of records, the warmest August 20th was in 2022 (83°F average), while the coldest was 1987 (64°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 20th dates historically. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for August 20th in Stockton, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 54° | 76° | — | — |
| 2024 | 95° | 57° | 76° | — | — |
| 2023 | 92° | 69° | 80° | — | — |
| 2022warmest | 105° | 60° | 83° | — | — |
| 2021 | 85° | 58° | 71° | — | — |
| 2020 | 97° | 65° | 81° | — | — |
| 2019 | 89° | 60° | 75° | — | — |
| 2018 | 92° | 57° | 74° | — | — |
| 2017 | 91° | 60° | 76° | — | — |
| 2016 | 93° | 60° | 77° | — | — |
| 2015 | 89° | 58° | 73° | — | — |
| 2014 | 84° | 59° | 72° | — | — |
| 2013 | 94° | 66° | 80° | — | — |
| 2012 | 96° | 56° | 76° | — | — |
| 2011 | 86° | 55° | 71° | — | — |
| 2010 | 94° | 58° | 76° | — | — |
| 2009 | 92° | 59° | 75° | — | — |
| 2008 | 92° | 57° | 74° | — | — |
| 2007 | 90° | 60° | 75° | — | — |
| 2006 | 93° | 55° | 74° | — | — |
| 2005 | 86° | 55° | 71° | — | — |
| 2004 | 95° | 59° | 77° | — | — |
| 2003 | 91° | 57° | 74° | — | — |
| 2002 | 92° | 59° | 75° | — | — |
| 2001 | 96° | 54° | 75° | — | — |
| 2000 | 89° | 52° | 70° | — | — |
| 1999 | 91° | 59° | 75° | — | — |
| 1998 | 86° | 52° | 69° | — | — |
| 1997 | 86° | 61° | 73° | 0.28" | — |
| 1996 | 87° | 52° | 69° | — | — |
| 1995 | 99° | 63° | 81° | — | — |
| 1994 | 94° | 49° | 71° | — | — |
| 1993 | 86° | 54° | 70° | — | — |
| 1992 | 101° | 61° | 81° | — | — |
| 1991 | 88° | 45° | 66° | — | — |
| 1990 | 85° | 58° | 71° | — | — |
| 1989 | 89° | 45° | 67° | — | — |
| 1988 | 101° | 48° | 74° | — | — |
| 1987coldest | 81° | 47° | 64° | — | — |
| 1986 | 92° | 46° | 69° | — | — |
| 1985 | 89° | 50° | 70° | — | — |
| 1984 | 94° | 54° | 74° | — | — |
| 1983 | 84° | 47° | 65° | — | — |
| 1982 | 89° | 59° | 74° | — | — |
| 1981 | 79° | 54° | 66° | — | — |
| 1980 | 85° | 55° | 70° | — | — |
| 1979 | 85° | 56° | 70° | — | — |
| 1978 | 95° | 59° | 77° | — | — |
| 1977 | 91° | 58° | 74° | — | — |
| 1976 | 78° | 59° | 69° | 0.08" | — |
| 1975 | 80° | 56° | 68° | — | — |
| 1974 | 89° | 60° | 75° | — | — |
| 1973 | 92° | 55° | 73° | — | — |
| 1972 | 83° | 60° | 71° | — | — |
| 1971 | 89° | 54° | 71° | — | — |
55 years of data from STOCKTON FIRE STN 4