Weather on March 18
Riverside, CA
55 Years of Data
Avg High
73°F
Avg Low
47°F
Warmest
2026
79°F avg
Coldest
1982
46°F avg
About This Date
March 18th in Riverside, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 47°F — a 26°F daily swing. Over 56 years of records, the warmest March 18th was in 2026 (79°F average), while the coldest was 1982 (46°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 14% of March 18th dates historically, with the wettest March 18th recording 2.31" 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 March 18th in Riverside, CA? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 98° | 61° | 79° | — | — |
| 2025 | 66° | 43° | 54° | — | — |
| 2024 | 77° | 45° | 61° | — | — |
| 2023 | 74° | 44° | 59° | — | — |
| 2022 | 81° | 49° | 65° | — | — |
| 2021 | 71° | 44° | 58° | — | — |
| 2020 | 57° | 39° | 48° | — | — |
| 2019 | 82° | 49° | 65° | — | — |
| 2018 | 64° | 40° | 52° | — | — |
| 2017 | 83° | 51° | 67° | — | — |
| 2016 | 80° | 51° | 66° | — | — |
| 2015 | 83° | 55° | 69° | — | — |
| 2014 | 82° | 52° | 67° | — | — |
| 2013 | 66° | 51° | 59° | — | — |
| 2012 | 58° | 40° | 49° | 0.51" | — |
| 2011 | 73° | 44° | 59° | — | — |
| 2010 | 79° | 51° | 65° | — | — |
| 2009 | 90° | 51° | 70° | — | — |
| 2008 | 73° | 43° | 58° | — | — |
| 2007 | 73° | 52° | 62° | — | — |
| 2006 | 59° | 39° | 49° | — | — |
| 2005 | 61° | 48° | 54° | 0.3" | — |
| 2004 | 88° | 50° | 69° | — | — |
| 2003 | 71° | 40° | 55° | — | — |
| 2002 | 63° | 41° | 52° | — | — |
| 2001 | 86° | 46° | 66° | — | — |
| 2000 | 89° | 50° | 70° | — | — |
| 1999 | 72° | 40° | 56° | — | — |
| 1998 | 75° | 53° | 64° | — | — |
| 1997 | 92° | 50° | 71° | — | — |
| 1996 | 78° | 48° | 63° | — | — |
| 1995 | 74° | 56° | 65° | — | — |
| 1994 | 78° | 52° | 65° | — | — |
| 1993 | 73° | 56° | 64° | — | — |
| 1992 | 67° | 49° | 58° | — | — |
| 1991 | 71° | 38° | 54° | 0.15" | — |
| 1990 | 84° | 43° | 63° | — | — |
| 1989 | 77° | 44° | 61° | — | — |
| 1988 | 82° | 41° | 62° | — | — |
| 1987 | 56° | 43° | 49° | — | — |
| 1986 | 68° | 39° | 54° | — | — |
| 1985 | 54° | 44° | 49° | 0.23" | — |
| 1984 | 80° | 50° | 65° | — | — |
| 1983 | 54° | 48° | 51° | 2.31" | — |
| 1982coldest | 53° | 40° | 46° | 0.81" | — |
| 1981 | 71° | 46° | 59° | — | — |
| 1980 | 61° | 45° | 53° | 0.48" | — |
| 1979 | 54° | 49° | 51° | 1.5" | — |
| 1978 | 89° | 52° | 70° | — | — |
| 1977 | 59° | 37° | 48° | — | — |
| 1976 | 83° | 46° | 64° | — | — |
| 1975 | 68° | 41° | 55° | — | — |
| 1974 | 80° | 52° | 66° | — | — |
| 1973 | 65° | 44° | 54° | — | — |
| 1972 | 74° | 52° | 63° | — | — |
| 1971 | 78° | 43° | 60° | — | — |
56 years of data from RIVERSIDE CITRUS EXP