Climatological Report (Daily)
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880
CDUS46 KMTR 160827
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
127 AM PDT WED SEP 16 2026

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 15 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         73  12:22 PM  98    1971  75     -2       82
  MINIMUM         56   3:51 AM  48    1970  56      0       58
  AVERAGE         65                        66     -1       70

PRECIPITATION (IN)
  YESTERDAY        0.00          T    1982   0.00   0.00     0.00
                                      1995
                                      1996
  MONTH TO DATE    0.01                      0.02  -0.01     0.02
  SINCE OCT 1     19.63                     19.59   0.04    16.13
  SINCE JAN 1     10.78                     12.62  -1.84     7.57

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    0                        17    -17        2
  SINCE SEP 1      0                        17    -17        2
  SINCE JUL 1     74                       119    -45       92

 COOLING
  YESTERDAY        0                         2     -2        5
  MONTH TO DATE   49                        30     19       34
  SINCE SEP 1     49                        30     19       34
  SINCE JAN 1    160                       140     20       84
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     9.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           2:00 AM
 LOWEST     55          11:00 AM
 AVERAGE    71

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   75        90      1968
 MINIMUM TEMPERATURE (F)   56        49      2006


SUNRISE AND SUNSET
SEPTEMBER 16 2026.....SUNRISE   6:52 AM PDT   SUNSET   7:15 PM PDT
SEPTEMBER 17 2026.....SUNRISE   6:53 AM PDT   SUNSET   7:14 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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