Climatological Report (Daily)
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430
CDUS46 KMTR 120838
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT SAT SEP 12 2026

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 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   2:03 PM  98    1979  75     -2       72
  MINIMUM         60   4:51 AM  49    1951  56      4       62
  AVERAGE         67                        66      1       67

PRECIPITATION (IN)
  YESTERDAY        0.00          0.22 2017   0.00   0.00     0.00
  MONTH TO DATE    0.01                      0.01   0.00     0.02
  SINCE OCT 1     19.63                     19.58   0.05    16.13
  SINCE JAN 1     10.78                     12.61  -1.83     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                        13    -13        1
  SINCE SEP 1      0                        13    -13        1
  SINCE JUL 1     74                       115    -41       91

 COOLING
  YESTERDAY        2                         2      0        2
  MONTH TO DATE   46                        22     24       26
  SINCE SEP 1     46                        22     24       26
  SINCE JAN 1    157                       132     25       76
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION  NW (300)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    10.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          12:00 AM
 LOWEST     59           2:00 PM
 AVERAGE    76

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   75       100      1979
 MINIMUM TEMPERATURE (F)   56        47      1946
                                             1970


SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE   6:49 AM PDT   SUNSET   7:22 PM PDT
SEPTEMBER 13 2026.....SUNRISE   6:50 AM PDT   SUNSET   7:20 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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