Weather on June 21
Santa Rosa, CA
55 Years of Data
About This Date
June 21st in Santa Rosa, CA typically brings warm summer weather, with average highs around 83°F and lows near 52°F — a 31°F daily swing. Over 55 years of records, the warmest June 21st was in 1981 (82°F average), while the coldest was 2012 (54°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for June 21st in Santa Rosa, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 52° | 67° | — | — |
| 2024 | 83° | 50° | 66° | — | — |
| 2023 | 75° | 50° | 63° | — | — |
| 2022 | 104° | 56° | 80° | — | — |
| 2021 | 76° | 56° | 66° | — | — |
| 2020 | 87° | 55° | 71° | — | — |
| 2019 | 79° | 50° | 64° | — | — |
| 2018 | 87° | 46° | 67° | — | — |
| 2017 | 91° | 55° | 73° | — | — |
| 2016 | 91° | 54° | 72° | — | — |
| 2015 | 71° | 50° | 61° | — | — |
| 2014 | 77° | 52° | 64° | — | — |
| 2013 | 83° | 54° | 68° | — | — |
| 2012coldest | 62° | 47° | 54° | — | — |
| 2011 | 94° | 49° | 71° | — | — |
| 2010 | 82° | 53° | 68° | — | — |
| 2009 | 82° | 54° | 68° | — | — |
| 2008 | 97° | 63° | 80° | — | — |
| 2007 | 82° | 46° | 64° | — | — |
| 2006 | 95° | 57° | 76° | — | — |
| 2005 | 73° | 47° | 60° | — | — |
| 2004 | 79° | 49° | 64° | — | — |
| 2003 | 80° | 47° | 63° | — | — |
| 2002 | 73° | 49° | 61° | — | — |
| 2001 | 88° | 57° | 72° | — | — |
| 2000 | 82° | 53° | 68° | — | — |
| 1999 | 82° | 54° | 68° | — | — |
| 1998 | 68° | 55° | 62° | — | — |
| 1997 | 91° | 51° | 71° | — | — |
| 1996 | 74° | 49° | 61° | — | — |
| 1995 | 84° | 55° | 70° | — | — |
| 1994 | 76° | 47° | 61° | — | — |
| 1993 | 76° | 51° | 63° | — | — |
| 1992 | 75° | 54° | 64° | — | — |
| 1991 | 72° | 46° | 59° | — | — |
| 1990 | 94° | 59° | 76° | — | — |
| 1989 | 97° | 60° | 78° | — | — |
| 1988 | 74° | 55° | 64° | — | — |
| 1987 | 76° | 53° | 64° | — | — |
| 1986 | 84° | 53° | 69° | — | — |
| 1985 | 68° | 52° | 60° | — | — |
| 1984 | 81° | 52° | 66° | — | — |
| 1983 | 83° | 55° | 69° | — | — |
| 1982 | 70° | 51° | 60° | — | — |
| 1981warmest | 99° | 65° | 82° | — | — |
| 1980 | 80° | 49° | 64° | — | — |
| 1979 | 86° | 39° | 63° | — | — |
| 1978 | 80° | 48° | 64° | — | — |
| 1977 | 104° | 47° | 75° | — | — |
| 1976 | 80° | 49° | 64° | — | — |
| 1975 | 80° | 48° | 64° | — | — |
| 1974 | 88° | 49° | 68° | — | — |
| 1973 | 104° | 49° | 76° | — | — |
| 1972 | 76° | 50° | 63° | — | — |
| 1971 | 87° | 51° | 69° | — | — |
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.