Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 220825
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1225 AM PST MON DEC 22 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 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         63    334 PM  68    1999  56      7       60
  MINIMUM         58   1125 PM  28    1990  44     14       47
  AVERAGE         61                        50     11       54

PRECIPITATION (IN)
  YESTERDAY        0.02          1.73 1945   0.15  -0.13     0.00
  MONTH TO DATE   10.62                      2.59   8.03     0.35
  SINCE JUL 1     13.34                      6.13   7.21     1.49
  SINCE JAN 1     20.65                     19.21   1.44     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        4                        15    -11       11
  MONTH TO DATE  126                       295   -169      339
  SINCE DEC 1    126                       295   -169      339
  SINCE JUL 1    314                       859   -545      840

 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    24   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED    11.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     93          1100 AM
 AVERAGE    97

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        68      1999
 MINIMUM TEMPERATURE (F)   44        27      1990


SUNRISE AND SUNSET
DECEMBER 22 2014......SUNRISE   721 AM PST   SUNSET   455 PM PST
DECEMBER 23 2014......SUNRISE   722 AM PST   SUNSET   456 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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