Climatological Report (Daily)
Issued by NWS

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707
CDUS46 KMTR 290835
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
135 AM PDT FRI AUG 29 2025

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 28 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         75   1:36 PM  95    2009  74      1       71
  MINIMUM         59   5:23 AM  49    1945  56      3       56
                                      1952
  AVERAGE         67                        65      2       64

PRECIPITATION (IN)
  YESTERDAY        0.00          T    1982   0.00   0.00     0.00
                                      1986
                                      1987
  MONTH TO DATE    T                         0.03  -0.03     0.10
  SINCE OCT 1     16.11                     19.56  -3.45    20.23
  SINCE JAN 1      7.55                     12.59  -5.04    14.90

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        1
  MONTH TO DATE   21                        38    -17       78
  SINCE JUN 1    233                       193     40      241
  SINCE JUL 1     90                        96     -6      128

 COOLING
  YESTERDAY        2                         2      0        0
  MONTH TO DATE   29                        36     -7       14
  SINCE JUN 1     31                        85    -54       63
  SINCE JAN 1     37                       105    -68       74
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED    11.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           6:00 AM
 LOWEST     55           2:00 PM
 AVERAGE    69

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        98      1968
 MINIMUM TEMPERATURE (F)   56        49      1955


SUNRISE AND SUNSET
AUGUST 29 2025........SUNRISE   6:38 AM PDT   SUNSET   7:42 PM PDT
AUGUST 30 2025........SUNRISE   6:38 AM PDT   SUNSET   7:41 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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