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San Francisco January Weather

Averages and records for weather in San Francisco, California in the month of January.

Typical San Francisco January Weather 1991–2020
Average daily high	58.4 °F
Average daily low	46.9 °F
Average monthly precipitation	4.4 inches
Daily chance of precipitation	36.0%

San Francisco January Weather Records 1921–2024
Highest temperature	79 °F	January 8, 1962
Lowest temperature	30 °F	January 21, 1937
Highest daily low	62 °F	January 1, 1997
Lowest daily high	40 °F	January 21, 1962
Hottest average high temperature	64.0 °F	2014
Coldest average high temperature	48.6 °F	1937
Most daily precipitation	3.9 inches	January 4, 1982
Most monthly precipitation	12.1 inches	1998

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
January 1	57.6	46.3	71	38
January 2	57.6	46.3	72	37
January 3	57.7	46.4	65	36
January 4	57.8	46.4	67	35
January 5	57.8	46.4	69	35
January 6	57.8	46.4	69	35
January 7	57.8	46.5	67	34
January 8	57.9	46.5	79	30
January 9	57.9	46.6	73	32
January 10	57.9	46.6	69	32
January 11	58.0	46.7	67	33
January 12	58.0	46.7	74	36
January 13	58.1	46.8	72	35
January 14	58.2	46.8	69	36
January 15	58.3	46.8	73	37
January 16	58.4	46.9	72	37
January 17	58.5	46.9	74	38
January 18	58.6	47.0	76	34
January 19	58.7	47.1	70	32
January 20	58.8	47.2	69	32
January 21	59.0	47.3	71	30
January 22	59.2	47.3	74	34
January 23	59.3	47.4	75	35
January 24	59.4	47.5	74	36
January 25	59.5	47.6	72	36
January 26	59.7	47.6	70	36
January 27	59.8	47.7	71	37
January 28	59.9	47.7	72	36
January 29	60.0	47.8	73	36
January 30	60.2	47.8	71	36
January 31	60.3	47.9	74	38

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location