San Francisco C.O.
The tables below display average monthly climate and weather indicators in San Francisco C.O. California.
Temperature by: Fahrenheit / Centigrade
| San Francisco C.O. Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | 10.6 | 12.4 | 12.7 | 13.3 | 13.7 | 14.7 | 15.1 | 15.6 | 16.8 | 16.7 | 14.0 | 10.9 | 13.9 |
| Avg. Max Temperature | 13.5 | 15.6 | 16.0 | 16.7 | 17.1 | 17.8 | 18.1 | 18.7 | 20.4 | 20.4 | 17.1 | 13.6 | 17.1 |
| Avg. Min Temperature | 7.7 | 9.3 | 9.4 | 9.9 | 10.3 | 11.4 | 11.9 | 12.6 | 13.3 | 12.9 | 10.9 | 8.3 | 10.7 |
| Days with Max Temp of 32 C or Higher | 0.0 | 0.0 | 0.0 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | 1.0 | < 0.5 | 0.0 | 0.0 | 1.0 |
| Days with Min Temp Below Freezing | < 0.5 | < 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.5 | 0.0 |
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| San Francisco C.O. Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 431 | 297 | 313 | 275 | 260 | 198 | 187 | 156 | 116 | 123 | 237 | 412 | 3005 |
| Cooling Degree Days | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 35.0 | 30.0 | 0.0 | 0.0 | 65.0 |
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| San Francisco C.O. Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 4.1 | 3.0 | 3.1 | 1.3 | 0.3 | 0.2 | 0.0 | 0.1 | 0.3 | 1.3 | 3.2 | 3.1 | 19.7 |
| Days with Precipitation 0.01 inch or More | 11.0 | 10.0 | 11.0 | 6.0 | 3.0 | 1.0 | < 0.05 | 1.0 | 2.0 | 4.0 | 8.0 | 10.0 | 68.0 |
| Monthly Snowfall (inches) | < 0.05 | < 0.05 | < 0.05 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.05 | < 0.05 |
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| Other San Francisco C.O. Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 6.7 | 7.5 | 8.5 | 9.5 | 10.4 | 10.9 | 11.2 | 10.5 | 9.1 | 7.6 | 6.3 | 6.5 | 8.7 |
| Clear Days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Partly Cloudy Days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cloudy Days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Percent of Possible Sunshine | 56.0 | 62.0 | 69.0 | 73.0 | 72.0 | 73.0 | 66.0 | 65.0 | 72.0 | 70.0 | 62.0 | 53.0 | 66.0 |
| Avg. Relative Humidity | 44.5 | 73.0 | 71.5 | 71.5 | 74.5 | 73.0 | 71.5 | 72.5 | 69.5 | 64.0 | 61.5 | 62.0 | 66.5 |
Weather information for other cities in California