Weather on October 20
Chula Vista, CA
55 Years of Data
Avg High
75°F
Avg Low
57°F
Warmest
2016
74°F avg
Coldest
2021
58°F avg
About This Date
October 20th in Chula Vista, CA typically brings pleasant fall weather, with average highs around 75°F and lows near 57°F. Over 55 years of records, the warmest October 20th was in 2016 (74°F average), while the coldest was 2021 (58°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 9% of October 20th dates historically. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for October 20th in Chula Vista, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 54° | 70° | — | — |
| 2024 | 83° | 54° | 68° | — | — |
| 2023 | 83° | 59° | 71° | — | — |
| 2022 | 81° | 62° | 71° | — | — |
| 2021coldest | 68° | 49° | 58° | — | — |
| 2020 | 72° | 61° | 66° | — | — |
| 2019 | 75° | 52° | 63° | — | — |
| 2018 | 82° | 59° | 71° | — | — |
| 2017 | 70° | 64° | 67° | — | — |
| 2016warmest | 92° | 56° | 74° | — | — |
| 2015 | 77° | 60° | 69° | — | — |
| 2014 | 74° | 62° | 68° | — | — |
| 2013 | 74° | 52° | 63° | — | — |
| 2012 | 69° | 66° | 68° | — | — |
| 2011 | 69° | 61° | 65° | — | — |
| 2010 | 65° | 58° | 61° | 0.08" | — |
| 2009 | 71° | 58° | 64° | — | — |
| 2008 | 79° | 55° | 67° | — | — |
| 2007 | 69° | 53° | 61° | — | — |
| 2006 | 82° | 51° | 67° | — | — |
| 2005 | 73° | 56° | 64° | — | — |
| 2004 | 70° | 59° | 64° | — | — |
| 2003 | 86° | 60° | 73° | — | — |
| 2002 | 72° | 60° | 66° | — | — |
| 2001 | 75° | 59° | 67° | — | — |
| 2000 | 72° | 62° | 67° | — | — |
| 1999 | 94° | 53° | 73° | — | — |
| 1998 | 72° | 52° | 62° | — | — |
| 1997 | 73° | 64° | 69° | — | — |
| 1996 | 70° | 55° | 62° | — | — |
| 1995 | 76° | 58° | 67° | — | — |
| 1994 | 73° | 52° | 62° | — | — |
| 1993 | 87° | 53° | 70° | — | — |
| 1992 | 71° | 58° | 64° | — | — |
| 1991 | 70° | 58° | 64° | — | — |
| 1990 | 79° | 60° | 69° | — | — |
| 1989 | 72° | 58° | 65° | — | — |
| 1988 | 67° | 65° | 66° | — | — |
| 1987 | 76° | 60° | 68° | — | — |
| 1986 | 72° | 52° | 62° | — | — |
| 1985 | 75° | 56° | 65° | — | — |
| 1984 | 71° | — | — | 0.13" | — |
| 1983 | 76° | 64° | 70° | — | — |
| 1982 | 79° | 55° | 67° | — | — |
| 1981 | 75° | 53° | 64° | — | — |
| 1980 | 71° | 55° | 63° | — | — |
| 1979 | 71° | 60° | 66° | 0.43" | — |
| 1978 | 75° | 58° | 66° | 0.18" | — |
| 1977 | 68° | 58° | 63° | — | — |
| 1976 | 72° | 63° | 67° | — | — |
| 1975 | 67° | 57° | 62° | — | — |
| 1974 | 68° | 56° | 62° | — | — |
| 1973 | 74° | 56° | 65° | — | — |
| 1972 | 69° | 55° | 62° | 0.18" | — |
| 1971 | 71° | 48° | 60° | — | — |
55 years of data from CHULA VISTA