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San Rafael Weather Records

San Rafael, California weather data and records from 1894–2021 based on data compiled by the NOAA.
All data displayed in U.S. customary units.
All data displayed in metric units.
All-Time Recorded High
The highest temperature ever recorded in San Rafael, California was 109.9 °F43.3 °C which occurred on September 1, 2017.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in San Rafael, California was 19.9 °F-6.7 °C which occurred on December 22, 1990.
Lowest Temperatures: All-Time By Year
San Rafael Weather by Month
Averages based on the years 1991–2020
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
☀️ Average high (°F°C) 55.613.1 60.315.7 63.917.7 66.719.3 71.421.9 76.925.0 80.527.0 80.627.0 79.526.4 74.023.4 64.017.8 56.113.4 69.220.7
🌙 Average low (°F°C) 42.25.7 44.16.7 45.37.4 47.28.4 50.210.1 53.311.8 54.912.7 55.212.9 54.112.3 51.210.6 46.17.8 42.05.6 48.99.4
☀️ Record high (°F°C) 82.027.8 82.928.3 88.031.1 91.933.3 100.037.8 109.943.3 109.042.8 105.140.6 109.943.3 106.041.1 88.031.1 79.026.1 109.943.3
🌙 Record low (°F°C) 23.0-5.0 21.0-6.1 24.1-4.4 28.0-2.2 27.0-2.8 30.9-0.6 34.01.1 39.94.4 32.00.0 28.0-2.2 25.0-3.9 19.9-6.7 19.9-6.7
💧 Average precipitation (inchescm) 8.020.2 7.118.1 4.611.8 2.15.4 0.82.1 0.20.4 0.00.0 0.10.1 0.10.1 1.64.0 3.89.7 7.418.7 34.286.8
💧 Daily % chance precipitation 40.4 38.6 33.0 22.1 10.0 4.5 0.5 0.4 2.5 13.3 25.3 37.8 18.3
❄️ Average snow (inchescm) 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0
More San Rafael Weather Records
1894–2021
Highest daily low 77.0 °F25.0 °C May 15, 2008
Lowest daily high 37.0 °F2.8 °C December 22, 1990
Most daily precipitation 8.7 inches22.2 cm December 11, 1995
Most monthly precipitation 24.1 inches61.2 cm January 1995
Most yearly precipitation 60.1 inches152.5 cm 1973
Earliest freeze October 1 1894
Latest freeze June 12 1894
Most daily snow none -
San Rafael Weather Streaks
Most consecutive days...
With precipitation 16 days Dec 31, 1994 – Jan 15, 1995
Without precipitation 168 days May 22 – Nov 5, 2002
High temperature ≥ 80 °F27 °C 40 days Jul 5 – Aug 13, 2018
High temperature ≥ 90 °F32 °C 7 days Jul 19–25, 2006
High temperature ≥ 100 °F38 °C 5 days Sep 30 – Oct 4, 1980
San Rafael Weather by Year
1894 1895 1903 1904 1905 1947 1948 1949 1950 1951
1952 1953 1954 1955 1956 1957 1958 1959 1960 1961
1962 1963 1964 1965 1966 1967 1968 1969 1970 1971
1972 1973 1974 1975 1976 1977 1978 1979 1980 1984
1985 1986 1987 1988 1989 1990 1991 1992 1993 1994
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
2015 2016 2017 2018 2021
More
Weather Station Details
Years Station Coordinates
1894–2021 San Rafael Civic Ctr location
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