Can't find what you're looking for? We're happy to answer your questions.

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
More
Weather Station Details
Years Station Coordinates
1894–2021 San Rafael Civic Ctr location