Weather on March 18
Modesto, CA
55 Years of Data
Avg High
70°F
Avg Low
46°F
Warmest
2026
73°F avg
Coldest
2012
46°F avg
About This Date
March 18th in Modesto, CA typically brings pleasant spring weather, with average highs around 70°F and lows near 46°F. Over 56 years of records, the warmest March 18th was in 2026 (73°F average), while the coldest was 2012 (46°F) — a 27°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 1.12" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for March 18th in Modesto, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 91° | 55° | 73° | — | — |
| 2025 | 61° | 41° | 51° | — | — |
| 2024 | 74° | 46° | 60° | — | — |
| 2023 | 68° | 42° | 55° | — | — |
| 2022 | 75° | 43° | 59° | — | — |
| 2021 | 64° | 48° | 56° | 0.25" | — |
| 2020 | 59° | 39° | 49° | 0.03" | — |
| 2019 | 78° | 45° | 61° | — | — |
| 2018 | 59° | 36° | 47° | — | — |
| 2017 | 74° | 53° | 63° | — | — |
| 2016 | 78° | 48° | 63° | — | — |
| 2015 | 76° | 50° | 63° | — | — |
| 2014 | 71° | 48° | 60° | — | — |
| 2013 | 72° | 45° | 58° | — | — |
| 2012coldest | 55° | 37° | 46° | 0.05" | — |
| 2011 | 59° | 41° | 50° | 1.12" | — |
| 2010 | 74° | 49° | 61° | — | — |
| 2009 | 73° | 50° | 62° | — | — |
| 2008 | 74° | 43° | 58° | — | — |
| 2007 | 79° | 51° | 65° | — | — |
| 2006 | 64° | 41° | 53° | — | — |
| 2005 | 67° | 52° | 59° | — | — |
| 2004 | 85° | 51° | 68° | — | — |
| 2003 | 66° | 45° | 55° | — | — |
| 2002 | 60° | 35° | 48° | — | — |
| 2001 | 76° | 45° | 60° | — | — |
| 2000 | 75° | 42° | 59° | — | — |
| 1999 | 65° | 42° | 53° | — | — |
| 1998 | 75° | 51° | 63° | — | — |
| 1997 | 83° | 51° | 67° | — | — |
| 1996 | 84° | 55° | 70° | — | — |
| 1995 | 64° | 53° | 59° | 0.18" | — |
| 1994 | 75° | 52° | 63° | — | — |
| 1993 | 69° | 49° | 59° | — | — |
| 1992 | 73° | 43° | 58° | — | — |
| 1991 | 56° | 47° | 51° | 0.36" | — |
| 1990 | 77° | 50° | 64° | — | — |
| 1989 | 61° | 52° | 56° | 0.2" | — |
| 1988 | 79° | 41° | 60° | — | — |
| 1987 | 64° | 43° | 53° | — | — |
| 1986 | 70° | 42° | 56° | — | — |
| 1985 | 58° | 45° | 51° | 0.76" | — |
| 1984 | 69° | 43° | 56° | — | — |
| 1983 | 60° | 46° | 53° | — | — |
| 1982 | 57° | 41° | 49° | 1.12" | — |
| 1981 | 59° | 45° | 52° | 0.36" | — |
| 1980 | 70° | 41° | 55° | — | — |
| 1979 | 65° | 48° | 56° | 0.28" | — |
| 1978 | 80° | 53° | 67° | — | — |
| 1977 | 64° | 38° | 51° | — | — |
| 1976 | 64° | 45° | 54° | 0.18" | — |
| 1975 | 67° | 44° | 55° | — | — |
| 1974 | 75° | 47° | 61° | — | — |
| 1973 | 63° | 34° | 48° | — | — |
| 1972 | 77° | 52° | 64° | — | — |
| 1971 | 69° | 39° | 54° | — | — |
56 years of data from MODESTO AP