811
CXUS56 KMTR 111734
CLMSFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1034 AM PDT SUN OCT 11 2026

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            100   08/01/1993
 LOW              42   08/21/1928
HIGHEST           80   08/02                          84  08/30
LOWEST            55   08/26                          55  08/23
AVG. MAXIMUM    71.5               73.4    -1.9     73.1
AVG. MINIMUM    57.4                                57.9
MEAN            64.4               64.9    -0.5     65.5
DAYS MAX >= 90     0                                   0
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        0.66   1976
 MINIMUM        0.00   2021
TOTALS          0.03               0.04   -0.01        T
DAILY AVG.      0.00               0.00   -0.00        T
DAYS >= .01        2                                   0
DAYS >= .10        0                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.02   08/14 TO 08/15                  T  08/13 TO 08/13


DEGREE DAYS
HEATING TOTAL     24                 44     -20       21
 SINCE 7/1        74                101     -27       MM
COOLING TOTAL     16                 41     -25       42
 SINCE 1/1       111                110       1       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              12.6
RESULTANT WIND SPEED/DIRECTION  11/290
HIGHEST WIND SPEED/DIRECTION    30/280    DATE  08/22
HIGHEST GUST SPEED/DIRECTION    40/280    DATE  08/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.51
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      25     FOG W/VIS <= 1/4 MILE      0
HAZE                     31

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$