CDUS46 KMTR 190835
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
135 AM PDT WED AUG 19 2026

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 18 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         70   2:32 PM  85    1978  74     -4       74
  MINIMUM         57  11:48 PM  48    1957  57      0       58
  AVERAGE         64                        65     -1       66

PRECIPITATION (IN)
  YESTERDAY        0.00          0.35 1976   0.00   0.00     0.00
  MONTH TO DATE    0.03                      0.02   0.01      T
  SINCE OCT 1     19.62                     19.55   0.07    16.11
  SINCE JAN 1     10.77                     12.58  -1.81     7.55

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

DEGREE DAYS
 HEATING
  YESTERDAY        1                         1      0        0
  MONTH TO DATE    8                        28    -20       17
  SINCE JUN 1    118                       183    -65      229
  SINCE JUL 1     58                        86    -28       86

 COOLING
  YESTERDAY        0                         1     -1        1
  MONTH TO DATE   11                        18     -7       11
  SINCE JUN 1     63                        67     -4       13
  SINCE JAN 1    106                        87     19       19
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION  NW (300)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    12.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           8:00 PM
 LOWEST     65           2:00 PM
 AVERAGE    79

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        89      1964
 MINIMUM TEMPERATURE (F)   57        49      1955


SUNRISE AND SUNSET
AUGUST 19 2026........SUNRISE   6:29 AM PDT   SUNSET   7:57 PM PDT
AUGUST 20 2026........SUNRISE   6:30 AM PDT   SUNSET   7:55 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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