Climatological Report (Daily)
Issued by NWS

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623
CDUS46 KMTR 220825
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT TUE AUG 22 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 21 2017...

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         75    141 PM  85    1974  73      2       69
  MINIMUM         61   1159 PM  42    1928  56      5       58
  AVERAGE         68                        65      3       64

PRECIPITATION (IN)
  YESTERDAY        0.00          0.04 1968   0.00   0.00     0.00
  MONTH TO DATE    T                         0.02  -0.02     0.00
  SINCE OCT 1     30.92                     20.46  10.46    17.23
  SINCE JAN 1     21.97                     13.10   8.87    12.44

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        1
  MONTH TO DATE    6                        32    -26       32
  SINCE JUN 1    128                       202    -74      158
  SINCE JUL 1     52                        97    -45       97

 COOLING
  YESTERDAY        3                         1      2        0
  MONTH TO DATE   36                        21     15        5
  SINCE JUN 1     93                        66     27       28
  SINCE JAN 1    116                        85     31       59
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     9.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           100 AM
 LOWEST     53           200 PM
 AVERAGE    72

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        90      1999
 MINIMUM TEMPERATURE (F)   56        49      1955


SUNRISE AND SUNSET
AUGUST 22 2017........SUNRISE   632 AM PDT   SUNSET   752 PM PDT
AUGUST 23 2017........SUNRISE   632 AM PDT   SUNSET   751 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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