Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 130827
CLISFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST WED DEC 13 2017


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

...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR DECEMBER 12 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1850 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         62    343 PM  76    1958  57      5       55
  MINIMUM         47    743 AM  31    1932  46      1       48
  AVERAGE         55                        52      3       52

PRECIPITATION (IN)
  YESTERDAY        0.00          2.56 1864   0.14  -0.14     0.00
  MONTH TO DATE    0.02                      1.64  -1.62     2.09
  SINCE OCT 1      3.16                      5.92  -2.76     6.73
  SINCE JAN 1     26.57                     20.73   5.84    23.22

DEGREE DAYS
 HEATING
  YESTERDAY       10                        MM     MM       13
  MONTH TO DATE  104                        MM     MM      139
  SINCE DEC 1    104                        MM     MM      139
  SINCE JUL 1    649                        MM     MM      855

 COOLING
  YESTERDAY        0                        MM     MM        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    226                         0    226       93
..................................................................







THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        71      1911
 MINIMUM TEMPERATURE (F)   46        35      1972


SUNRISE AND SUNSET
DECEMBER 13 2017......SUNRISE   717 AM PST   SUNSET   452 PM PST
DECEMBER 14 2017......SUNRISE   717 AM PST   SUNSET   452 PM PST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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