Climatological Report (Daily)
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576
CDUS46 KMTR 220040
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
440 PM PST FRI NOV 21 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR NOVEMBER 21 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         64   3:59 PM  70    1958  63      1       65
  MINIMUM         47   6:48 AM  35    1964  48     -1       55
  AVERAGE         56                        55      1       60

PRECIPITATION (IN)
  TODAY            0.00          1.81 1977   0.08  -0.08     0.50
  MONTH TO DATE    3.43                      1.22   2.21     1.04
  SINCE OCT 1      4.46                      2.01   2.45     1.05
  SINCE JAN 1     12.08                     14.68  -2.60    15.95

SNOWFALL (IN)
  TODAY           MM             0.0
  MONTH TO DATE    T
  SINCE SEP 1      T
  SINCE JUL 1      T
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY            9                        10     -1        5
  MONTH TO DATE   88                       161    -73      151
  SINCE SEP 1    154                       307   -153      313
  SINCE JUL 1    244                       409   -165      443

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    2                         0      2        0
  SINCE SEP 1    100                        89     11      110
  SINCE JAN 1    150                       199    -49      184
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     4.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           6:00 AM
 LOWEST     46           2:00 PM
 AVERAGE    70

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   62        74      1959
 MINIMUM TEMPERATURE (F)   47        36      1947
                                             1952


SUNRISE AND SUNSET
NOVEMBER 21 2025......SUNRISE   6:56 AM PST   SUNSET   4:55 PM PST
NOVEMBER 22 2025......SUNRISE   6:57 AM PST   SUNSET   4:54 PM PST


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




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