Climatological Report (Daily)
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CDUS46 KMTR 140037
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
437 PM PST THU DEC 13 2018


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 13 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         61    145 PM  69    1958  57      4       61
  MINIMUM         44    516 AM  30    1972  45     -1       41
                                      1945
  AVERAGE         53                        51      2       51

PRECIPITATION (IN)
  TODAY            0.00          2.47 2002   0.12  -0.12     0.00
  MONTH TO DATE    0.51                      1.49  -0.98     0.03
  SINCE OCT 1      3.74                      4.82  -1.08     3.01
  SINCE JAN 1     14.55                     18.11  -3.56    25.20

SNOWFALL (IN)
  TODAY            0.0           0.0
  MONTH TO DATE    0.0
  SINCE DEC 1      0.0
  SINCE JUL 1      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           12                        14     -2       14
  MONTH TO DATE  167                       176     -9      149
  SINCE DEC 1    167                       176     -9      149
  SINCE JUL 1    694                       740    -46      488

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1     65                       164    -99      346
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   E (90)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     2.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           500 AM
 LOWEST     42           200 PM
 AVERAGE    63

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        69      1958
 MINIMUM TEMPERATURE (F)   45        30      1972


SUNRISE AND SUNSET
DECEMBER 13 2018......SUNRISE   716 AM PST   SUNSET   452 PM PST
DECEMBER 14 2018......SUNRISE   717 AM PST   SUNSET   452 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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