635
CXUS56 KMTR 010832
CLMSFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
132 AM PDT SAT AUG 01 2026

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 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            105   07/17/1988
 LOW              44   07/29/1951
HIGHEST           92   07/21                          76  07/10
LOWEST            53   07/11                          53  07/01
                                                          07/07
AVG. MAXIMUM    71.3               72.6    -1.3     69.2
AVG. MINIMUM    57.2                                56.0
MEAN            64.2               64.0     0.2     62.6
DAYS MAX >= 90     1                                   0
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        0.35   1977
 MINIMUM        0.00   2024
TOTALS             T               0.00    0.00        T
DAILY AVG.         T               0.00    0.00        T
DAYS >= .01        0                                   0
DAYS >= .10        0                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL      T   07/20 TO 07/20                  T  07/27 TO 07/27
                                                          07/22 TO 07/22
                                                          07/27 TO 07/27


DEGREE DAYS
HEATING TOTAL     50                 58      -8       69
 SINCE 7/1        50                 62     -12       MM
COOLING TOTAL     33                 26       7        1
 SINCE 1/1        95                 69      26       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              13.7
RESULTANT WIND SPEED/DIRECTION  12/280
HIGHEST WIND SPEED/DIRECTION    30/280    DATE  07/15
                                30/280          07/24
HIGHEST GUST SPEED/DIRECTION    38/280    DATE  07/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.49
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      0
HAZE                     30

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

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