Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 210026
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
526 PM PDT SUN AUG 20 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 20 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         72    349 PM  84    1964  73     -1       69
  MINIMUM         61    749 AM  47    1955  56      5       58
  AVERAGE         67                        65      2       64

PRECIPITATION (IN)
  TODAY            0.00          0.04 1997   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)
  TODAY            0.0           0.0
  MONTH TO DATE    0.0
  SINCE JUN 1      0.0
  SINCE JUL 1      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            0                         1     -1        1
  MONTH TO DATE    6                        31    -25       31
  SINCE JUN 1    128                       201    -73      157
  SINCE JUL 1     52                        96    -44       96

 COOLING
  TODAY            2                         1      1        0
  MONTH TO DATE   33                        20     13        5
  SINCE JUN 1     90                        65     25       28
  SINCE JAN 1    113                        84     29       59
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED     9.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           600 AM
 LOWEST     57           200 PM
 AVERAGE    71

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        85      1974
 MINIMUM TEMPERATURE (F)   56        42      1928


SUNRISE AND SUNSET
AUGUST 20 2017........SUNRISE   630 AM PDT   SUNSET   755 PM PDT
AUGUST 21 2017........SUNRISE   631 AM PDT   SUNSET   754 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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