Weather on October 20
Concord, CA
55 Years of Data
Avg High
76°F
Avg Low
50°F
Warmest
1991
73°F avg
Coldest
1996
54°F avg
About This Date
October 20th in Concord, CA typically brings pleasant fall weather, with average highs around 76°F and lows near 50°F — a 26°F daily swing. Over 55 years of records, the warmest October 20th was in 1991 (73°F average), while the coldest was 1996 (54°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 7% of October 20th dates historically, with the wettest October 20th recording 0.53" of rain. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for October 20th in Concord, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 54° | 67° | — | — |
| 2024 | 80° | 48° | 64° | — | — |
| 2023 | 79° | 57° | 68° | — | — |
| 2022 | 88° | 52° | 70° | — | — |
| 2021 | 67° | 55° | 61° | 0.53" | — |
| 2020 | 90° | 55° | 72° | — | — |
| 2019 | 79° | 50° | 64° | — | — |
| 2018 | 83° | 49° | 66° | — | — |
| 2017 | 67° | 54° | 60° | — | — |
| 2016 | 83° | 50° | 66° | — | — |
| 2015 | 85° | 55° | 70° | — | — |
| 2014 | 71° | 54° | 62° | — | — |
| 2013 | 80° | 43° | 61° | — | — |
| 2012 | 74° | 54° | 64° | — | — |
| 2011 | 74° | 55° | 64° | — | — |
| 2010 | 71° | 49° | 60° | — | — |
| 2009 | 71° | 50° | 61° | — | — |
| 2008 | 73° | 51° | 62° | — | — |
| 2007 | 68° | 48° | 58° | — | — |
| 2006 | 85° | 50° | 67° | — | — |
| 2005 | 74° | 50° | 62° | — | — |
| 2004 | 62° | 48° | 55° | 0.2" | — |
| 2003 | 88° | 52° | 70° | — | — |
| 2002 | 76° | 53° | 64° | — | — |
| 2001 | 76° | 49° | 62° | — | — |
| 2000 | 72° | 50° | 61° | — | — |
| 1999 | 83° | 46° | 64° | — | — |
| 1998 | 83° | 51° | 67° | — | — |
| 1997 | 72° | 51° | 61° | — | — |
| 1996coldest | 67° | 42° | 54° | — | — |
| 1995 | 85° | 53° | 69° | — | — |
| 1994 | 72° | 47° | 59° | — | — |
| 1993 | 77° | 50° | 64° | — | — |
| 1992 | 78° | 59° | 69° | — | — |
| 1991warmest | 89° | 57° | 73° | — | — |
| 1990 | 75° | 40° | 57° | — | — |
| 1989 | 71° | 55° | 63° | — | — |
| 1988 | 84° | 50° | 67° | — | — |
| 1987 | 69° | 44° | 57° | — | — |
| 1986 | 69° | 41° | 55° | — | — |
| 1985 | 68° | 43° | 55° | — | — |
| 1984 | 70° | 47° | 58° | — | — |
| 1983 | 81° | 44° | 62° | — | — |
| 1982 | 75° | 59° | 67° | — | — |
| 1981 | 72° | 48° | 60° | — | — |
| 1980 | 79° | 48° | 63° | — | — |
| 1979 | 69° | 46° | 58° | 0.15" | — |
| 1978 | 72° | 53° | 62° | — | — |
| 1977 | 70° | 48° | 59° | — | — |
| 1976 | 80° | 48° | 64° | — | — |
| 1975 | 86° | — | — | — | — |
| 1974 | 86° | 48° | 67° | — | — |
| 1973 | 78° | 56° | 67° | — | — |
| 1972 | 70° | 55° | 62° | — | — |
| 1971 | 69° | 53° | 61° | 0.08" | — |
55 years of data from CONCORD BUCHANAN FLD