Climatological Report (Daily)
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000
CDUS46 KMTR 280826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1226 AM PST SUN DEC 28 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 27 2014...

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)
 YESTERDAY
  MAXIMUM         56    411 PM  70    1953  56      0       57
  MINIMUM         42    307 AM  33    1962  44     -2       43
                                      1954
  AVERAGE         49                        50     -1       50

PRECIPITATION (IN)
  YESTERDAY        0.00          2.24 2004   0.14  -0.14     0.00
  MONTH TO DATE   10.66                      3.47   7.19     0.35
  SINCE JUL 1     13.38                      7.01   6.37     1.49
  SINCE JAN 1     20.69                     20.09   0.60     3.38

SNOWFALL (IN)
  YESTERDAY        0.0           0.0
  MONTH TO DATE    0.0
  SINCE DEC 1      0.0
  SINCE JUL 1      0.0

DEGREE DAYS
 HEATING
  YESTERDAY       16                        15      1       15
  MONTH TO DATE  188                       385   -197      415
  SINCE DEC 1    188                       385   -197      415
  SINCE JUL 1    376                       949   -573      916

 COOLING
  YESTERDAY        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   2   RESULTANT WIND DIRECTION   E (100)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     3.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80          1000 PM
 LOWEST     47           400 PM
 AVERAGE    64

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        71      1967
 MINIMUM TEMPERATURE (F)   44        32      1966


SUNRISE AND SUNSET
DECEMBER 28 2014......SUNRISE   724 AM PST   SUNSET   459 PM PST
DECEMBER 29 2014......SUNRISE   724 AM PST   SUNSET   500 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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