Climatological Report (Monthly)
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000
CXUS56 KMTR 010830
CLMSFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT SAT OCT 01 2022

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            104   09/02/2017
                       09/01/2017
                       02/13/2353849
 LOW              41   09/30/1950
HIGHEST           97   09/05                          90  09/21
LOWEST            55   09/01                          53  09/05
                       09/02
                                                          09/29
AVG. MAXIMUM    77.1               74.8     2.3     73.4
AVG. MINIMUM    59.3                                56.4
MEAN            68.2               65.3     2.9     64.9
DAYS MAX >= 90     3                                   1
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.30   1959
 MINIMUM        0.00   2021
TOTALS          0.27               0.07    0.20     0.00
DAILY AVG.      0.01               0.00    0.01     0.00
DAYS >= .01        3                                   0
DAYS >= .10        2                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.16   09/21 TO 09/21               0.00  08/31 TO 08/31


DEGREE DAYS
HEATING TOTAL     13                 46     -33       31
 SINCE 7/1        74                146     -72       MM
COOLING TOTAL    114                 56      58       36
 SINCE 1/1       267                166     101       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.3
RESULTANT WIND SPEED/DIRECTION   9/290
HIGHEST WIND SPEED/DIRECTION    30/300    DATE  09/02
HIGHEST GUST SPEED/DIRECTION    40/270    DATE  09/16

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.37
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      0
HAZE                     23

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

$$


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