Climatological Report (Daily)
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000
CDUS46 KMTR 190845
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
145 AM PDT SAT AUG 19 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 18 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         72    223 PM  88    1934  73     -1       73
  MINIMUM         59   1159 PM  48    1957  56      3       58
  AVERAGE         66                        65      1       66

PRECIPITATION (IN)
  YESTERDAY        0.00          0.35 1976   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        0
  MONTH TO DATE    6                        29    -23       30
  SINCE JUN 1    128                       199    -71      156
  SINCE JUL 1     52                        94    -42       95

 COOLING
  YESTERDAY        1                         1      0        1
  MONTH TO DATE   28                        18     10        4
  SINCE JUN 1     85                        63     22       27
  SINCE JAN 1    108                        82     26       58
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  12   RESULTANT WIND DIRECTION  NW (300)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    12.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1100 PM
 LOWEST     57          1200 PM
 AVERAGE    71

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        89      1964
 MINIMUM TEMPERATURE (F)   56        49      1955
                                             1894


SUNRISE AND SUNSET
AUGUST 19 2017........SUNRISE   629 AM PDT   SUNSET   756 PM PDT
AUGUST 20 2017........SUNRISE   630 AM PDT   SUNSET   755 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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