Climatological Report (Daily)
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000
CDUS46 KMTR 250836
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
136 AM PDT MON SEP 25 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 24 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         79    306 PM  93    1978  73      6       82
  MINIMUM         54    525 AM  48    1955  55     -1       58
                                      1945
  AVERAGE         67                        64      3       70

PRECIPITATION (IN)
  YESTERDAY        0.00          0.18 1986   0.01  -0.01     0.00
  MONTH TO DATE    0.22                      0.11   0.11     0.00
  SINCE OCT 1     31.14                     20.59  10.55    17.23
  SINCE JAN 1     22.19                     13.23   8.96    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        0                         2     -2        0
  MONTH TO DATE    5                        48    -43       46
  SINCE SEP 1      5                        48    -43       46
  SINCE JUL 1     65                       161    -96      149

 COOLING
  YESTERDAY        2                         1      1        5
  MONTH TO DATE  131                        39     92       33
  SINCE SEP 1    131                        39     92       33
  SINCE JAN 1    263                       136    127       98
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     8.5


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    72          1200 AM
 LOWEST     19           300 PM
 AVERAGE    46

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        94      2016
 MINIMUM TEMPERATURE (F)   55        47      1972
                                             1948


SUNRISE AND SUNSET
SEPTEMBER 25 2017.....SUNRISE   700 AM PDT   SUNSET   701 PM PDT
SEPTEMBER 26 2017.....SUNRISE   701 AM PDT   SUNSET   700 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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