Weather on June 21
Santa Rosa, CA
55 Years of Data
Avg High
83°F
Avg Low
52°F
Warmest
1981
82°F avg
Coldest
2012
54°F avg
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° | — | — |
55 years of data from SANTA ROSA