Climatological Report (Daily)
Issued by NWS

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691
CDUS46 KMTR 210825
CLISFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT FRI AUG 21 2026

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

...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 20 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         64   1:43 PM  84    1916  68     -4       74
  MINIMUM         56   4:43 AM  49    1898  56      0       56
  AVERAGE         60                        62     -2       65

PRECIPITATION (IN)
  YESTERDAY        0.00          0.19 1997   0.00   0.00     0.00
  MONTH TO DATE    0.02                      0.04  -0.02     0.03
  SINCE OCT 1     20.73                     22.77  -2.04    19.88
  SINCE JAN 1     11.80                     14.47  -2.67     9.68

DEGREE DAYS
 HEATING
  YESTERDAY        5                         4      1        0
  MONTH TO DATE   60                        80    -20       63
  SINCE JUN 1    308                       401    -93      439
  SINCE JUL 1    176                       232    -56      226

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    1                         1      0        1
  SINCE JUN 1     22                        20      2        1
  SINCE JAN 1     73                        35     38        7
...................................................................


THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        88      1891
 MINIMUM TEMPERATURE (F)   56        47      1898


SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE   6:31 AM PDT   SUNSET   7:54 PM PDT
AUGUST 22 2026........SUNRISE   6:31 AM PDT   SUNSET   7:53 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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