Climatological Report (Daily)
Issued by NWS

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640
CDUS46 KMTR 190830
CLISFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT SAT SEP 19 2026

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

...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR SEPTEMBER 18 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1850 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         66  12:43 PM  94    1912  70     -4       65
  MINIMUM         57   6:43 AM  49    1899  56      1       59
  AVERAGE         62                        63     -1       62

PRECIPITATION (IN)
  YESTERDAY        0.00          2.01 1959   0.00   0.00     0.00
  MONTH TO DATE    0.03                      0.03   0.00     0.08
  SINCE OCT 1     20.76                     22.82  -2.06    19.96
  SINCE JAN 1     11.83                     14.52  -2.69     9.76

DEGREE DAYS
 HEATING
  YESTERDAY        3                         3      0        3
  MONTH TO DATE   24                        56    -32       19
  SINCE SEP 1     24                        56    -32       19
  SINCE JUL 1    229                       326    -97      264

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   32                        18     14       14
  SINCE SEP 1     32                        18     14       14
  SINCE JAN 1    107                        68     39       33
...................................................................


THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        93      1919
 MINIMUM TEMPERATURE (F)   56        49      1911


SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE   6:55 AM PDT   SUNSET   7:11 PM PDT
SEPTEMBER 20 2026.....SUNRISE   6:56 AM PDT   SUNSET   7:09 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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