Climatological Report (Daily)
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377
CDUS46 KMTR 170826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT TUE OCT 17 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR OCTOBER 16 2017...

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)
 YESTERDAY
  MAXIMUM         83    425 PM  88    1988  71     12       66
  MINIMUM         56    523 AM  44    1980  53      3       62
  AVERAGE         70                        62      8       64

PRECIPITATION (IN)
  YESTERDAY        0.00          1.01 1984   0.03  -0.03     0.67
  MONTH TO DATE    0.00                      0.32  -0.32     1.30
  SINCE OCT 1      0.00                      0.32  -0.32     1.30
  SINCE JAN 1     22.19                     13.61   8.58    13.74

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         4     -4        1
  MONTH TO DATE   18                        49    -31       34
  SINCE SEP 1     25                       102    -77       94
  SINCE JUL 1     85                       215   -130      197

 COOLING
  YESTERDAY        5                         1      4        0
  MONTH TO DATE   18                        16      2       12
  SINCE SEP 1    177                        60    117       72
  SINCE JAN 1    309                       157    152      137
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   N (360)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     2.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    72           700 AM
 LOWEST     16           400 PM
 AVERAGE    44

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        90      1988
 MINIMUM TEMPERATURE (F)   53        42      1971


SUNRISE AND SUNSET
OCTOBER 17 2017.......SUNRISE   720 AM PDT   SUNSET   629 PM PDT
OCTOBER 18 2017.......SUNRISE   721 AM PDT   SUNSET   628 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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