San Francisco - Recent January Temperatures and Rainfall





The numbers here describe what the January weather in San Francisco, California was like for every year since 2010. A series of tables gives January data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot or cold days occurred each January. Then there's information on how much rain actually landed this month during recent years, as well as how often San Francisco had wet weather.

The climate data come from weather measurements made in downtown San Francisco.

Temperature Weather iconTemperature

January temperature averages by year in San Francisco
High °F Low °F Year High °C Low °C
58 48 2020 14 9
60 50 2019 16 10
60 49 2018 15 10
56 46 2017 13 8
58 50 2016 14 10
62 49 2015 17 9
64 49 2014 18 9
57 45 2013 14 7
59 47 2012 15 8
57 46 2011 14 8
56 48 2010 13 9
Number of days in January when the temperature in San Francisco dropped to 32 or below, or rose to at least 70 degrees Fahrenheit
32 °F
0 °C
Year 70 °F
21 °C
0 2020 0
0 2019 0
0 2018 0
0 2017 0
0 2016 0
0 2015 1
0 2014 4
0 2013 0
0 2012 0
0 2011 0
0 2010 0

Rainy Weather iconRain

This table gives the total precipitation that fell on San Francisco during January in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for January in San Francisco
Days Year Inches Milli­metres
9 2020 2.5 62
12 2019 5.1 130
13 2018 5.2 132
17 2017 9.4 239
16 2016 7.0 177
0 2015 0.0 0
3 2014 0.1 2
5 2013 0.5 13
5 2012 2.7 68
6 2011 1.6 39
16 2010 6.7 169
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

San Francisco - Recent Years
San Francisco - Extremes
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