Weather on January 31
San Francisco, CA
55 Years of Data
About This Date
January 31st in San Francisco, CA typically brings cool winter weather, with average highs around 59°F and lows near 47°F. Over 56 years of records, the warmest January 31st was in 2015 (63°F average), while the coldest was 1971 (44°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 23% of January 31st dates historically, with the wettest January 31st recording 4.24" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for January 31st in San Francisco, CA? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 63° | 51° | 57° | — | — |
| 2025 | 54° | 48° | 51° | 0.79" | — |
| 2024 | 60° | 53° | 57° | 4.24" | — |
| 2023 | 59° | 41° | 50° | — | — |
| 2022 | 60° | 48° | 54° | — | — |
| 2021 | 60° | 50° | 55° | — | — |
| 2020 | 67° | 51° | 59° | — | — |
| 2019 | 60° | 53° | 57° | 1.3" | — |
| 2018 | 67° | 50° | 58° | — | — |
| 2017 | 59° | 47° | 53° | — | — |
| 2016 | 56° | 48° | 52° | — | — |
| 2015warmest | 74° | 52° | 63° | — | — |
| 2014 | 58° | 48° | 53° | — | — |
| 2013 | 63° | 48° | 55° | — | — |
| 2012 | 57° | 47° | 52° | — | — |
| 2011 | 55° | 45° | 50° | — | — |
| 2010 | 57° | 48° | 53° | — | — |
| 2009 | 66° | 46° | 56° | — | — |
| 2008 | 53° | 46° | 50° | 1.24" | — |
| 2007 | 56° | 48° | 52° | — | — |
| 2006 | 56° | 44° | 50° | — | — |
| 2005 | 66° | 46° | 56° | — | — |
| 2004 | 56° | 44° | 50° | — | — |
| 2003 | 61° | 51° | 56° | — | — |
| 2002 | 58° | 40° | 49° | — | — |
| 2001 | 62° | 42° | 52° | — | — |
| 2000 | 54° | 50° | 52° | 0.13" | — |
| 1999 | 54° | 45° | 49° | 2.31" | — |
| 1998 | 61° | 51° | 56° | 0.43" | — |
| 1997 | 58° | 50° | 54° | — | — |
| 1996 | 61° | 51° | 56° | 4.11" | — |
| 1995 | 69° | 56° | 62° | — | — |
| 1994 | 60° | 46° | 53° | — | — |
| 1993 | 65° | 44° | 54° | — | — |
| 1992 | 66° | 48° | 57° | 0.36" | — |
| 1991 | 60° | 46° | 53° | — | — |
| 1990 | 54° | 43° | 48° | 0.76" | — |
| 1989 | 56° | 46° | 51° | — | — |
| 1988 | 57° | 43° | 50° | — | — |
| 1987 | 62° | 45° | 53° | — | — |
| 1986 | 60° | 55° | 58° | 1.93" | — |
| 1985 | 58° | 43° | 50° | — | — |
| 1984 | 60° | 48° | 54° | — | — |
| 1983 | 58° | 46° | 52° | — | — |
| 1982 | 62° | 45° | 53° | — | — |
| 1981 | 57° | 44° | 51° | — | — |
| 1980 | 54° | 48° | 51° | — | — |
| 1979 | 49° | 42° | 45° | — | — |
| 1978 | 56° | 47° | 51° | — | — |
| 1977 | 58° | 44° | 51° | — | — |
| 1976 | 73° | 52° | 62° | — | — |
| 1975 | 52° | 44° | 48° | 3.1" | — |
| 1974 | 54° | 48° | 51° | 0.97" | — |
| 1973 | 56° | 47° | 51° | — | — |
| 1972 | 55° | 39° | 47° | — | — |
| 1971coldest | 46° | 41° | 44° | — | — |
San Francisco, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Francisco, CA Monthly Precipitation
Average rainfall per month, in inches.
San Francisco, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Francisco, CA
Most pleasant months in San Francisco, CA: July, August.