Climatological Report (Daily)
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294
CDUS46 KMTR 210841
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1241 AM PST FRI NOV 21 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR NOVEMBER 20 2025...

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)
 YESTERDAY
  MAXIMUM         60        MM  69    1989  63     -3       64
                                      2005
                                      2023
  MINIMUM         51        MM  35    1964  48      3       51
  AVERAGE         56                        55      1       58

PRECIPITATION (IN)
  YESTERDAY        0.23          0.75 1961   0.08   0.15     0.28
  MONTH TO DATE    3.43                      1.14   2.29     0.54
  SINCE OCT 1      4.46                      1.93   2.53     0.55
  SINCE JAN 1     12.08                     14.60  -2.52    15.45

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

DEGREE DAYS
 HEATING
  YESTERDAY        9                        10     -1        7
  MONTH TO DATE   79                       151    -72      146
  SINCE SEP 1    145                       297   -152      308
  SINCE JUL 1    235                       399   -164      438

 COOLING
  YESTERDAY        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   5   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     7.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           5:00 AM
 LOWEST     62           2:00 PM
 AVERAGE    79

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   63        70      1958
 MINIMUM TEMPERATURE (F)   48        35      1964


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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