Climatological Report (Daily)
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000
CDUS46 KMTR 230827
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
127 AM PDT SAT SEP 23 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 22 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         70    133 PM  91    1946  74     -4       68
  MINIMUM         57    608 AM  48    1981  56      1       56
                                      1910
  AVERAGE         64                        64      0       62

PRECIPITATION (IN)
  YESTERDAY        0.00          0.20 1990   0.01  -0.01     0.00
  MONTH TO DATE    0.22                      0.10   0.12     0.00
  SINCE OCT 1     31.14                     20.58  10.56    17.23
  SINCE JAN 1     22.19                     13.22   8.97    12.44

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        1                         2     -1        3
  MONTH TO DATE    5                        44    -39       44
  SINCE SEP 1      5                        44    -39       44
  SINCE JUL 1     65                       157    -92      147

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE  128                        37     91       28
  SINCE SEP 1    128                        37     91       28
  SINCE JAN 1    260                       134    126       93
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION   W (270)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    10.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80          1200 AM
 LOWEST     37           200 PM
 AVERAGE    59

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        92      1978
 MINIMUM TEMPERATURE (F)   55        45      1972


SUNRISE AND SUNSET
SEPTEMBER 23 2017.....SUNRISE   658 AM PDT   SUNSET   704 PM PDT
SEPTEMBER 24 2017.....SUNRISE   659 AM PDT   SUNSET   703 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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