WEATHER IN San Francisco
Climate tables. Data for San Francisco.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -3.3 (1949) | 6.9 | 10.7 | 14.4 | 22.8 (2014) |
| february | -1.1 (1950) | 7.8 | 11.9 | 16.0 | 25.0 (1986) |
| march | -0.6 (1966) | 8.7 | 13.1 | 17.4 | 29.4 (1952) |
| april | 2.2 (1955) | 9.5 | 14.1 | 18.7 | 33.3 (1989) |
| may | 3.9 (1950) | 10.9 | 15.5 | 20.2 | 36.1 (1984) |
| june | 6.1 (1954) | 12.0 | 16.9 | 21.9 | 41.1 (1961) |
| july | 6.7 (1951) | 12.9 | 17.8 | 22.6 | 37.2 (1985) |
| august | 5.6 (1928) | 13.6 | 18.3 | 23.0 | 37.8 (1993) |
| september | 5.0 (1950) | 13.3 | 18.5 | 23.8 | 39.4 (1971) |
| october | 2.8 (1949) | 11.9 | 17.2 | 22.4 | 37.2 (1987) |
| november | -0.6 (1954) | 9.2 | 13.6 | 17.9 | 29.4 (1967) |
| december | -4.4 (1972) | 7.0 | 10.8 | 14.6 | 23.9 (1958) |
| year | -4.4 (1972) | 10.3 | 14.6 | 18.8 | 41.1 (1961) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 99 | 0.3 (2014) | 619 (1862) | 142 (1982) |
| february | 101 | 0.0 (1864) | 347 (1998) | 74 (1998) |
| march | 69 | 0.8 (1923) | 222 (1879) | 51 (1978) |
| april | 35 | 0.0 (1857) | 256 (1880) | 58 (1958) |
| may | 12 | 0.0 (1850) | 102 (1925) | 39 (1957) |
| june | 4 | 0.0 (1850) | 38 (2011) | 21 (1967) |
| july | 0.0 | 0.0 (1850) | 9 (1977) | 9 (1977) |
| august | 1 | 0.0 (1850) | 17 (1976) | 14 (1997) |
| september | 2 | 0.0 (1852) | 64 (1918) | 58 (1959) |
| october | 20 | 0.0 (1850) | 185 (1962) | 67 (2009) |
| november | 52 | 0.0 (1890) | 299 (1885) | 61 (1973) |
| december | 105 | 0.0 (1876) | 385 (1866) | 80 (1995) |
| year | 525 | 229 (1917) | 981 (1862) | 142 (1982) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |