Climatological Report (Daily)
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000
CDUS46 KMTR 250831
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1230 AM PST THU DEC 25 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 24 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         62    148 PM  65    1967  56      6       59
  MINIMUM         48   1159 PM  29    1990  44      4       45
  AVERAGE         55                        50      5       52

PRECIPITATION (IN)
  YESTERDAY        0.04          2.00 1983   0.15  -0.11     0.00
  MONTH TO DATE   10.66                      3.04   7.62     0.35
  SINCE JUL 1     13.38                      6.58   6.80     1.49
  SINCE JAN 1     20.69                     19.66   1.03     3.38

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

DEGREE DAYS
 HEATING
  YESTERDAY       10                        15     -5       13
  MONTH TO DATE  146                       340   -194      376
  SINCE DEC 1    146                       340   -194      376
  SINCE JUL 1    334                       904   -570      877

 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  11   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    33   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    43   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED    12.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     63          1100 PM
 AVERAGE    82

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        68      1967
 MINIMUM TEMPERATURE (F)   44        31      1990
                                             1962


SUNRISE AND SUNSET
DECEMBER 25 2014......SUNRISE   723 AM PST   SUNSET   457 PM PST
DECEMBER 26 2014......SUNRISE   723 AM PST   SUNSET   458 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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