Climatological Report (Daily)
Issued by NWS

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472
CDUS46 KMTR 160026
CLISFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
425 PM PST FRI DEC 15 2017


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

...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR DECEMBER 15 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         60    243 PM  71    1980  57      3       59
  MINIMUM         50    643 AM  36    1972  46      4       50
  AVERAGE         55                        52      3       55

PRECIPITATION (IN)
  TODAY            0.00          1.31 2016   0.15  -0.15     1.31
  MONTH TO DATE    0.02                      2.08  -2.06     3.52
  SINCE OCT 1      3.16                      6.36  -3.20     8.16
  SINCE JAN 1     26.57                     21.17   5.40    24.65

DEGREE DAYS
 HEATING
  TODAY           10                        MM     MM       10
  MONTH TO DATE  134                        MM     MM      168
  SINCE DEC 1    134                        MM     MM      168
  SINCE JUL 1    679                        MM     MM      884

 COOLING
  TODAY            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 TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        71      1998
 MINIMUM TEMPERATURE (F)   46        37      1963


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   718 AM PST   SUNSET   452 PM PST
DECEMBER 16 2017......SUNRISE   719 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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