San Francisco Airport
The tables below display average monthly climate and weather indicators in San Francisco Airport California.
Temperature by: Fahrenheit / Centigrade
| San Francisco Airport Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | 48.7 | 52.2 | 53.3 | 55.6 | 58.1 | 61.5 | 62.7 | 63.7 | 64.5 | 61.0 | 54.8 | 49.4 | 57.1 |
| Avg. Max Temperature | 55.6 | 59.4 | 60.8 | 63.9 | 66.5 | 70.3 | 71.6 | 72.3 | 73.6 | 70.1 | 62.4 | 56.1 | 65.2 |
| Avg. Min Temperature | 41.8 | 45.0 | 45.8 | 47.2 | 49.7 | 52.6 | 53.9 | 55.0 | 55.2 | 51.8 | 47.1 | 42.7 | 49.0 |
| Days with Max Temp of 90 F or Higher | 0.0 | 0.0 | 0.0 | < 0.5 | < 0.5 | 1.0 | 1.0 | < 0.5 | 1.0 | < 0.5 | 0.0 | 0.0 | 3.0 |
| Days with Min Temp Below Freezing | 1.0 | < 0.5 | < 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 2.0 |
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| San Francisco Airport Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 505 | 358 | 363 | 287 | 218 | 121 | 92.0 | 68.0 | 79.0 | 135 | 306 | 484 | 3016 |
| Cooling Degree Days | 0.0 | 0.0 | 0.0 | 5.0 | 0.0 | 16.0 | 21.0 | 28.0 | 64.0 | 11.0 | 0.0 | 0.0 | 145 |
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| San Francisco Airport Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 4.4 | 3.2 | 3.1 | 1.4 | 0.2 | 0.1 | 0.0 | 0.1 | 0.2 | 1.2 | 2.9 | 3.1 | 19.7 |
| Days with Precipitation 0.01 inch or More | 11.0 | 10.0 | 10.0 | 6.0 | 3.0 | 1.0 | < 0.05 | < 0.05 | 1.0 | 4.0 | 7.0 | 10.0 | 63.0 |
| Monthly Snowfall (inches) | 0.0 | < 0.05 | < 0.05 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.05 |
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| Other San Francisco Airport Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 7.2 | 8.6 | 10.5 | 12.2 | 13.4 | 14.0 | 13.6 | 12.8 | 11.1 | 9.4 | 7.5 | 7.1 | 10.6 |
| Clear Days | 9.0 | 8.0 | 10.0 | 11.0 | 14.0 | 16.0 | 21.0 | 19.0 | 18.0 | 16.0 | 11.0 | 9.0 | 160 |
| Partly Cloudy Days | 8.0 | 7.0 | 9.0 | 9.0 | 10.0 | 9.0 | 8.0 | 9.0 | 8.0 | 9.0 | 8.0 | 8.0 | 100 |
| Cloudy Days | 15.0 | 13.0 | 13.0 | 10.0 | 8.0 | 5.0 | 3.0 | 3.0 | 4.0 | 7.0 | 11.0 | 14.0 | 105 |
| Percent of Possible Sunshine | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Avg. Relative Humidity | 62.5 | 75.5 | 73.5 | 72.5 | 71.5 | 72.0 | 72.5 | 73.0 | 72.5 | 70.5 | 71.5 | 74.5 | 76.0 |
Weather information for other cities in California