Weather on May 18
Antioch, CA
55 Years of Data
About This Date
May 18th in Antioch, CA typically brings pleasant spring weather, with average highs around 79°F and lows near 53°F — a 26°F daily swing. Over 56 years of records, the warmest May 18th was in 1997 (83°F average), while the coldest was 2011 (51°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 18th dates historically, with the wettest May 18th recording 0.94" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 18th in Antioch, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 79° | 54° | 66° | — | — |
| 2025 | 74° | 50° | 62° | — | — |
| 2024 | 65° | 50° | 57° | — | — |
| 2023 | 72° | 61° | 66° | — | — |
| 2022 | 86° | 58° | 72° | — | — |
| 2021 | 84° | 53° | 69° | — | — |
| 2020 | 70° | 55° | 62° | 0.03" | — |
| 2019 | 60° | 48° | 54° | 0.94" | — |
| 2018 | 82° | 54° | 68° | — | — |
| 2017 | 78° | 53° | 66° | — | — |
| 2016 | 95° | 63° | 79° | — | — |
| 2015 | 72° | 53° | 62° | — | — |
| 2014 | 76° | 60° | 68° | — | — |
| 2013 | 86° | 56° | 71° | — | — |
| 2012 | 76° | 51° | 63° | — | — |
| 2011coldest | 70° | 32° | 51° | — | — |
| 2010 | 69° | 51° | 60° | — | — |
| 2009 | 92° | 56° | 74° | — | — |
| 2008 | 98° | 54° | 76° | — | — |
| 2007 | 79° | 58° | 68° | — | — |
| 2006 | 94° | 55° | 74° | — | — |
| 2005 | 65° | 52° | 58° | 0.15" | — |
| 2004 | 74° | 54° | 64° | — | — |
| 2003 | 72° | 49° | 60° | — | — |
| 2002 | 82° | — | — | — | — |
| 2001 | 86° | 55° | 71° | — | — |
| 2000 | 85° | 57° | 71° | — | — |
| 1999 | 79° | 54° | 66° | — | — |
| 1998 | 68° | 54° | 61° | — | — |
| 1997warmest | 99° | 68° | 83° | — | — |
| 1996 | 71° | 56° | 63° | — | — |
| 1995 | 77° | 50° | 64° | — | — |
| 1994 | 65° | 50° | 57° | 0.03" | — |
| 1993 | 78° | 51° | 65° | — | — |
| 1992 | 85° | 56° | 70° | — | — |
| 1991 | 66° | 47° | 56° | 0.25" | — |
| 1990 | 81° | 52° | 66° | — | — |
| 1989 | 78° | 51° | 65° | — | — |
| 1988 | 73° | 54° | 63° | — | — |
| 1987 | 77° | 53° | 65° | — | — |
| 1986 | 92° | 53° | 72° | — | — |
| 1985 | — | 47° | — | — | — |
| 1984 | 80° | 51° | 66° | — | — |
| 1983 | 86° | 53° | 70° | — | — |
| 1982 | 75° | 44° | 60° | — | — |
| 1981 | 78° | 58° | 68° | 0.08" | — |
| 1980 | 88° | 52° | 70° | — | — |
| 1979 | 91° | 59° | 75° | — | — |
| 1978 | 87° | 53° | 70° | — | — |
| 1977 | 73° | 48° | 61° | — | — |
| 1976 | 79° | 50° | 64° | — | — |
| 1975 | 88° | 56° | 72° | — | — |
| 1974 | 63° | 41° | 52° | — | — |
| 1973 | 92° | 58° | 75° | — | — |
| 1972 | 76° | 55° | 65° | — | — |
| 1971 | 78° | 57° | 68° | — | — |
Antioch, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Antioch, CA Monthly Precipitation
Average rainfall per month, in inches.
Antioch, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Antioch, CA
Antioch, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.