świat

Ameryka Północna

Port lotniczy San Francisco





Number of days available for climatic review

parametrstylutmarkwimajcze
Tmax215219552162209521502095
Tmin216419572165209221532097
słońce (godz.)000000
opad186169187181186180
wilgotność / widzialność184166184176179176


parametrlipsiewrzpaźlisgru
Tmax216421652118218321222195
Tmin216621602125218121282193
słońce (godz.)000000
opad188190210206210217
wilgotność / widzialność182182202198203213


Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured.

prognoza

San Francisco

pogoda bieżąca

zdjęcie satelitarne

zdjęcie satelitarne Kalifornia!