Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 180827
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST THU DEC 18 2014


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 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         60   1231 PM  67    1958  56      4       59
  MINIMUM         50    630 AM  30    1965  44      6       46
  AVERAGE         55                        50      5       53

PRECIPITATION (IN)
  YESTERDAY        0.21          1.26 2005   0.13   0.08     0.00
  MONTH TO DATE   10.18                      2.01   8.17     0.35
  SINCE JUL 1     12.90                      5.55   7.35     1.49
  SINCE JAN 1     20.21                     18.63   1.58     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       10                        15     -5       12
  MONTH TO DATE   99                       235   -136      287
  SINCE DEC 1     99                       235   -136      287
  SINCE JUL 1    287                       799   -512      788

 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   4   RESULTANT WIND DIRECTION  SE (150)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SE (120)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED     6.1


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     67          1200 PM
 AVERAGE    84

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        65      1958
 MINIMUM TEMPERATURE (F)   44        30      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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