Climatological Report (Daily)
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573
CDUS46 KMTR 190025
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
525 PM PDT FRI AUG 18 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 18 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         72    223 PM  88    1934  73     -1       73
  MINIMUM         61    709 AM  48    1957  56      5       58
  AVERAGE         67                        65      2       66

PRECIPITATION (IN)
  TODAY            0.00          0.35 1976   0.00   0.00     0.00
  MONTH TO DATE    T                         0.02  -0.02     0.00
  SINCE OCT 1     30.92                     20.46  10.46    17.23
  SINCE JAN 1     21.97                     13.10   8.87    12.44

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

DEGREE DAYS
 HEATING
  TODAY            0                         1     -1        0
  MONTH TO DATE    6                        29    -23       30
  SINCE JUN 1    128                       199    -71      156
  SINCE JUL 1     52                        94    -42       95

 COOLING
  TODAY            2                         1      1        1
  MONTH TO DATE   29                        18     11        4
  SINCE JUN 1     86                        63     23       27
  SINCE JAN 1    109                        82     27       58
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  NW (300)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    12.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           400 AM
 LOWEST     57          1200 PM
 AVERAGE    68

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        89      1964
 MINIMUM TEMPERATURE (F)   56        49      1955
                                             1894


SUNRISE AND SUNSET
AUGUST 18 2017........SUNRISE   628 AM PDT   SUNSET   758 PM PDT
AUGUST 19 2017........SUNRISE   629 AM PDT   SUNSET   756 PM PDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$




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