Climatological Report (Monthly)
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000
CXUS56 KMTR 081612
CLMSFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
912 AM PDT FRI SEP 8 2017

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2017

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            88   08/31                         76  08/09
LOWEST             53   08/26                         53  08/13
AVG. MAXIMUM     73.0              72.7     0.3     70.9
AVG. MINIMUM     58.9                               56.7
MEAN             66.0              64.5     1.5     63.8
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   2016
                        2011
                        2009
TOTALS              T              0.04   -0.04     0.00
DAILY AVG.          T              0.00    0.00     0.00
DAYS >= .01         0                                  0
DAYS >= .10         0                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL       T   08/04 TO 08/04           08/31 TO 08/31
                                                          08/31 TO 08/31
                                                          08/31 TO 08/31

DEGREE_DAYS
HEATING TOTAL      14                48     -34       38
 SINCE 7/1         60               113     -53      103
COOLING TOTAL      52                33      19       11
 SINCE 1/1        132                97      35       65
..................................................

WIND (MPH)
AVERAGE WIND SPEED              12.4
RESULTANT WIND SPEED/DIRECTION  11/280
HIGHEST WIND SPEED/DIRECTION    30/280    DATE  08/11
HIGHEST GUST SPEED/DIRECTION    35/280    DATE  08/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     70

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

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

$$



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