Climatological Report (Daily)
Issued by NWS

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290
CDUS46 KMTR 190028
CLISFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
528 PM PDT TUE AUG 18 2026

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

...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 18 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         65   1:43 PM  88    1934  68     -3       68
  MINIMUM         56   4:43 AM  48    1898  56      0       56
  AVERAGE         61                        62     -1       62

PRECIPITATION (IN)
  TODAY            0.00          0.34 1976   0.00   0.00     0.00
  MONTH TO DATE    0.02                      0.03  -0.01     0.03
  SINCE OCT 1     20.73                     22.76  -2.03    19.88
  SINCE JAN 1     11.80                     14.46  -2.66     9.68

DEGREE DAYS
 HEATING
  TODAY            4                         4      0        3
  MONTH TO DATE   51                        72    -21       61
  SINCE JUN 1    299                       393    -94      437
  SINCE JUL 1    167                       224    -57      224

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    1                         0      1        1
  SINCE JUN 1     22                        19      3        1
  SINCE JAN 1     73                        34     39        7
...................................................................


THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        91      1995
 MINIMUM TEMPERATURE (F)   56        48      1955


SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE   6:28 AM PDT   SUNSET   7:58 PM PDT
AUGUST 19 2026........SUNRISE   6:29 AM PDT   SUNSET   7:57 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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