CDUS46 KMTR 190831

CLISFD



CLIMATE REPORT 

NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA

131 AM PDT TUE AUG 19 2025



...................................



...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 18 2025...



CLIMATE NORMAL PERIOD: 1991 TO 2020

CLIMATE RECORD PERIOD: 1850 TO 2025





WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      

                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     

                                                  NORMAL           

...................................................................

TEMPERATURE (F)                                                          

 YESTERDAY                                                           

  MAXIMUM         68   4:43 PM  88    1934  68      0       67        

  MINIMUM         56   7:43 AM  48    1898  56      0       57        

  AVERAGE         62                        62      0       62     



PRECIPITATION (IN)                                                    

  YESTERDAY        0.00          0.34 1976   0.00   0.00     0.00     

  MONTH TO DATE    0.03                      0.03   0.00     0.00     

  SINCE OCT 1     19.88                     22.76  -2.88    25.72     

  SINCE JAN 1      9.68                     14.46  -4.78    19.04     



DEGREE DAYS                                                           

 HEATING                                                              

  YESTERDAY        3                         4     -1        3        

  MONTH TO DATE   61                        72    -11       75        

  SINCE JUN 1    437                       393     44      325        

  SINCE JUL 1    224                       224      0      170        



 COOLING                                                              

  YESTERDAY        0                         0      0        0        

  MONTH TO DATE    1                         0      1        0        

  SINCE JUN 1      1                        19    -18       13        

  SINCE JAN 1      7                        34    -27       19        

...................................................................





THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY

                         NORMAL    RECORD    YEAR                     

 MAXIMUM TEMPERATURE (F)   68        91      1995                      

 MINIMUM TEMPERATURE (F)   56        48      1955                      





SUNRISE AND SUNSET                                                    

AUGUST 19 2025........SUNRISE   6:29 AM PDT   SUNSET   7:57 PM PDT     

AUGUST 20 2025........SUNRISE   6:30 AM PDT   SUNSET   7:55 PM PDT     





-  INDICATES NEGATIVE NUMBERS.

R  INDICATES RECORD WAS SET OR TIED.

MM INDICATES DATA IS MISSING.

T  INDICATES TRACE AMOUNT.









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