Climatological Report (Daily)
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688
CDUS46 KMTR 050836
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1236 AM PST FRI DEC 05 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 4 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         55   4:47 PM  75    1958  60     -5       62
  MINIMUM         44   5:34 AM  36    2004  46     -2       47
  AVERAGE         50                        52     -2       55

PRECIPITATION (IN)
  YESTERDAY        0.00          1.56 1945   0.13  -0.13     0.00
  MONTH TO DATE    0.00                      0.48  -0.48     0.00
  SINCE OCT 1      4.46                      3.31   1.15     4.05
  SINCE JAN 1     12.08                     15.98  -3.90    18.95

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

DEGREE DAYS
 HEATING
  YESTERDAY       15                        12      3       10
  MONTH TO DATE   53                        48      5       33
  SINCE DEC 1     53                        48      5       33
  SINCE JUL 1    404                       556   -152      574

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    150                       201    -51      184
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION  NE (50)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED     4.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86          11:00 PM
 LOWEST     64           4:00 PM
 AVERAGE    75

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   59        69      1979
 MINIMUM TEMPERATURE (F)   46        31      1972


SUNRISE AND SUNSET
DECEMBER  5 2025......SUNRISE   7:10 AM PST   SUNSET   4:51 PM PST
DECEMBER  6 2025......SUNRISE   7:11 AM PST   SUNSET   4:51 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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