Weather on March 18
Concord, CA
55 Years of Data
About This Date
March 18th in Concord, CA typically brings mild spring weather, with average highs around 68°F and lows near 45°F. Over 56 years of records, the warmest March 18th was in 2026 (70°F average), while the coldest was 1991 (46°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 21% of March 18th dates historically, with the wettest March 18th recording 2.18" of rain. The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
Planning for March 18th in Concord, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 86° | 54° | 70° | — | — |
| 2025 | 62° | 40° | 51° | — | — |
| 2024 | 73° | 47° | 60° | — | — |
| 2023 | 63° | 43° | 53° | — | — |
| 2022 | 73° | 44° | 59° | — | — |
| 2021 | 58° | 50° | 54° | 0.51" | — |
| 2020 | 55° | 46° | 51° | 1.07" | — |
| 2019 | 76° | 45° | 60° | — | — |
| 2018 | 59° | 38° | 48° | — | — |
| 2017 | 70° | 53° | 61° | — | — |
| 2016 | 71° | 48° | 60° | — | — |
| 2015 | 75° | 49° | 62° | — | — |
| 2014 | 71° | 42° | 57° | — | — |
| 2013 | 67° | 43° | 55° | — | — |
| 2012 | 54° | 42° | 48° | — | — |
| 2011 | 56° | 41° | 48° | 2.18" | — |
| 2010 | 79° | 46° | 62° | — | — |
| 2009 | 74° | 46° | 60° | — | — |
| 2008 | 72° | 46° | 59° | — | — |
| 2007 | 74° | 50° | 62° | — | — |
| 2006 | 61° | 39° | 50° | — | — |
| 2005 | 60° | 52° | 56° | 0.25" | — |
| 2004 | 84° | 52° | 68° | — | — |
| 2003 | 66° | 41° | 54° | — | — |
| 2002 | 62° | 36° | 49° | — | — |
| 2001 | 78° | 48° | 63° | — | — |
| 2000 | 76° | 48° | 62° | — | — |
| 1999 | 62° | 45° | 53° | — | — |
| 1998 | 73° | 47° | 60° | — | — |
| 1997 | 72° | 46° | 59° | — | — |
| 1996 | 80° | 52° | 66° | — | — |
| 1995 | 69° | 53° | 61° | 0.15" | — |
| 1994 | 67° | 41° | 54° | — | — |
| 1993 | 67° | 52° | 59° | — | — |
| 1992 | 64° | 45° | 54° | — | — |
| 1991coldest | 56° | 37° | 46° | 0.58" | — |
| 1990 | 71° | 46° | 59° | 0.05" | — |
| 1989 | 59° | 49° | 54° | 0.36" | — |
| 1988 | 75° | 40° | 57° | — | — |
| 1987 | 61° | 43° | 52° | — | — |
| 1986 | 70° | 43° | 56° | — | — |
| 1985 | 63° | 42° | 52° | 0.66" | — |
| 1984 | 71° | 39° | 55° | — | — |
| 1983 | 60° | 43° | 51° | 1.75" | — |
| 1982 | 59° | 37° | 48° | 0.38" | — |
| 1981 | 55° | 43° | 49° | — | — |
| 1980 | 69° | 43° | 56° | — | — |
| 1979 | 60° | 45° | 52° | — | — |
| 1978 | — | 52° | — | — | — |
| 1977 | 66° | 37° | 52° | — | — |
| 1976 | 68° | 48° | 58° | 0.3" | — |
| 1975 | 66° | 39° | 53° | — | — |
| 1974 | 74° | 44° | 59° | — | — |
| 1973 | 62° | 33° | 48° | — | — |
| 1972 | 72° | 47° | 59° | — | — |
| 1971 | 68° | 37° | 53° | — | — |
Concord, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Concord, CA Monthly Precipitation
Average rainfall per month, in inches.
Concord, 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 Concord, CA
Concord, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.