Weather on July 18
Santa Rosa, CA
55 Years of Data
About This Date
July 18th in Santa Rosa, CA typically brings warm summer weather, with average highs around 81°F and lows near 53°F — a 28°F daily swing. Over 55 years of records, the warmest July 18th was in 1988 (82°F average), while the coldest was 1985 (58°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 2% of July 18th dates historically. 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 July 18th in Santa Rosa, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 51° | 63° | — | — |
| 2024 | 92° | 52° | 72° | — | — |
| 2023 | 90° | 54° | 72° | — | — |
| 2022 | 86° | 54° | 70° | — | — |
| 2021 | 88° | 53° | 70° | — | — |
| 2020 | 84° | 57° | 71° | — | — |
| 2019 | 85° | 56° | 70° | — | — |
| 2018 | 87° | 55° | 71° | — | — |
| 2017 | 77° | 50° | 64° | — | — |
| 2016 | 75° | 51° | 63° | — | — |
| 2015 | 80° | 56° | 68° | — | — |
| 2014 | 72° | 56° | 64° | — | — |
| 2013 | 77° | 52° | 64° | — | — |
| 2012 | 72° | 49° | 60° | — | — |
| 2011 | 82° | — | — | — | — |
| 2010 | 81° | 53° | 67° | — | — |
| 2009 | 89° | 52° | 70° | — | — |
| 2008 | 79° | 46° | 62° | — | — |
| 2007 | 75° | 60° | 68° | 0.3" | — |
| 2006 | 92° | 57° | 74° | — | — |
| 2005 | 84° | 53° | 69° | — | — |
| 2004 | 85° | 58° | 71° | — | — |
| 2003 | 93° | 52° | 72° | — | — |
| 2002 | 80° | 52° | 66° | — | — |
| 2001 | 79° | 52° | 65° | — | — |
| 2000 | 80° | 51° | 66° | — | — |
| 1999 | 72° | 52° | 62° | — | — |
| 1998 | 100° | 60° | 80° | — | — |
| 1997 | 82° | 54° | 68° | — | — |
| 1996 | 85° | 52° | 68° | — | — |
| 1995 | 80° | 57° | 69° | — | — |
| 1994 | 73° | 49° | 61° | — | — |
| 1993 | 86° | 54° | 70° | — | — |
| 1992 | 76° | 60° | 68° | — | — |
| 1991 | 74° | 52° | 63° | — | — |
| 1990 | 74° | 56° | 65° | — | — |
| 1989 | 95° | 63° | 79° | — | — |
| 1988warmest | 102° | 62° | 82° | — | — |
| 1987 | 70° | 47° | 58° | — | — |
| 1986 | 69° | 48° | 59° | — | — |
| 1985coldest | 70° | 47° | 58° | — | — |
| 1984 | 79° | 57° | 68° | — | — |
| 1983 | 70° | 50° | 60° | — | — |
| 1982 | 77° | 53° | 65° | — | — |
| 1981 | 73° | 51° | 62° | — | — |
| 1980 | 75° | 48° | 62° | — | — |
| 1979 | 85° | 53° | 69° | — | — |
| 1978 | 95° | 49° | 72° | — | — |
| 1977 | 83° | 53° | 68° | — | — |
| 1976 | 81° | 53° | 67° | — | — |
| 1975 | 74° | 53° | 63° | — | — |
| 1974 | 90° | 56° | 73° | — | — |
| 1973 | 73° | 52° | 62° | — | — |
| 1972 | 76° | 55° | 65° | — | — |
| 1971 | 90° | 56° | 73° | — | — |
Santa Rosa, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Santa Rosa, CA Monthly Precipitation
Average rainfall per month, in inches.
Santa Rosa, 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 Santa Rosa, CA
Most pleasant months in Santa Rosa, CA: July.