Climatological Report (Daily)
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000
CDUS46 KMTR 190035
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
435 PM PST THU DEC 18 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 2014...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         60    318 PM  65    1958  56      4       57
  MINIMUM         52    718 AM  30    1965  44      8       44
  AVERAGE         56                        50      6       51

PRECIPITATION (IN)
  TODAY            0.02          1.77 2005   0.14  -0.12     0.00
  MONTH TO DATE   10.20                      2.15   8.05     0.35
  SINCE JUL 1     12.92                      5.69   7.23     1.49
  SINCE JAN 1     20.23                     18.77   1.46     3.38

SNOWFALL (IN)
  TODAY            0.0           0.0
  MONTH TO DATE    0.0
  SINCE DEC 1      0.0
  SINCE JUL 1      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY            9                        15     -6       14
  MONTH TO DATE  108                       250   -142      301
  SINCE DEC 1    108                       250   -142      301
  SINCE JUL 1    296                       814   -518      802

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    497                       164    333      164
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  SE (120)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SE (120)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED     3.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     80          1200 PM
 AVERAGE    90

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        68      1999
 MINIMUM TEMPERATURE (F)   44        32      1965


SUNRISE AND SUNSET
DECEMBER 18 2014......SUNRISE   719 AM PST   SUNSET   453 PM PST
DECEMBER 19 2014......SUNRISE   720 AM PST   SUNSET   454 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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