Weather on December 18
Chula Vista, CA
55 Years of Data
Avg High
67°F
Avg Low
46°F
Warmest
2000
63°F avg
Coldest
1975
50°F avg
About This Date
December 18th in Chula Vista, CA typically brings mild winter weather, with average highs around 67°F and lows near 46°F. Over 55 years of records, the warmest December 18th was in 2000 (63°F average), while the coldest was 1975 (50°F) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 22% of December 18th dates historically, with the wettest December 18th recording 0.89" 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 18th in Chula Vista, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 47° | 63° | — | — |
| 2024 | 64° | 46° | 55° | — | — |
| 2023 | 78° | 49° | 63° | — | — |
| 2022 | 63° | 45° | 54° | — | — |
| 2021 | 67° | 40° | 53° | — | — |
| 2020 | 66° | 45° | 55° | 0.13" | — |
| 2019 | 66° | 41° | 54° | — | — |
| 2018 | 66° | 51° | 59° | 0.05" | — |
| 2017 | 69° | 45° | 57° | — | — |
| 2016 | 63° | 38° | 50° | — | — |
| 2015 | 70° | 41° | 55° | — | — |
| 2014 | 65° | 51° | 58° | — | — |
| 2013 | 68° | 55° | 62° | — | — |
| 2012 | 60° | 55° | 58° | 0.36" | — |
| 2011 | 62° | 50° | 56° | — | — |
| 2010 | 63° | 58° | 60° | 0.08" | — |
| 2009 | 76° | 46° | 61° | — | — |
| 2008 | 61° | 48° | 54° | 0.2" | — |
| 2007 | 68° | 42° | 55° | — | — |
| 2006 | 62° | 38° | 50° | — | — |
| 2005 | 63° | 47° | 55° | — | — |
| 2004 | 80° | 40° | 60° | — | — |
| 2003 | 77° | 44° | 61° | — | — |
| 2002 | 65° | 52° | 58° | 0.08" | — |
| 2001 | 64° | 39° | 52° | — | — |
| 2000warmest | 83° | 44° | 63° | — | — |
| 1999 | 76° | 46° | 61° | — | — |
| 1998 | 65° | 49° | 57° | — | — |
| 1997 | 67° | 49° | 58° | 0.25" | — |
| 1996 | 72° | 46° | 59° | — | — |
| 1995 | 67° | 40° | 53° | — | — |
| 1994 | 63° | 40° | 51° | — | — |
| 1993 | 65° | 40° | 52° | — | — |
| 1992 | 60° | 46° | 53° | — | — |
| 1991 | 66° | 54° | 60° | 0.89" | — |
| 1990 | 64° | 40° | 52° | — | — |
| 1989 | 61° | 44° | 52° | — | — |
| 1988 | 61° | 45° | 53° | 0.15" | — |
| 1987 | 66° | 43° | 54° | — | — |
| 1986 | 67° | 46° | 56° | — | — |
| 1985 | 79° | 43° | 61° | — | — |
| 1984 | 59° | 45° | 52° | 0.86" | — |
| 1983 | 70° | 45° | 57° | — | — |
| 1982 | 68° | 42° | 55° | — | — |
| 1981 | 62° | 47° | 54° | — | — |
| 1980 | 65° | 51° | 58° | — | — |
| 1979 | 73° | 45° | 59° | — | — |
| 1978 | 62° | 52° | 57° | 0.81" | — |
| 1977 | 69° | 51° | 60° | 0.61" | — |
| 1976 | 68° | 48° | 58° | — | — |
| 1975coldest | 61° | 40° | 50° | — | — |
| 1974 | 72° | 45° | 58° | — | — |
| 1973 | 61° | 47° | 54° | — | — |
| 1972 | 68° | 48° | 58° | — | — |
| 1971 | 61° | 44° | 52° | — | — |
55 years of data from CHULA VISTA