Climatological Report (Daily)
Issued by NWS

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226
CDUS46 KMTR 180025
CLISFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
525 PM PDT MON AUG 17 2026

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

...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 17 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         66   1:43 PM  92    1892  68     -2       66
  MINIMUM         56   4:43 AM  49    1894  56      0       57
  AVERAGE         61                        62     -1       62

PRECIPITATION (IN)
  TODAY            0.00          0.06 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   47                        68    -21       58
  SINCE JUN 1    295                       389    -94      434
  SINCE JUL 1    163                       220    -57      221

 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        88      1934
 MINIMUM TEMPERATURE (F)   56        48      1898


SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE   6:27 AM PDT   SUNSET   8:00 PM PDT
AUGUST 18 2026........SUNRISE   6:28 AM PDT   SUNSET   7:58 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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