Climatological Report (Daily)
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CDUS46 KMTR 200826
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT FRI OCT 20 2017


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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR OCTOBER 19 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         67    120 PM  85    1964  70     -3       74
  MINIMUM         54   1159 PM  43    1949  53      1       53
  AVERAGE         61                        62     -1       64

PRECIPITATION (IN)
  YESTERDAY        0.19          1.65 2004   0.03   0.16     0.00
  MONTH TO DATE    0.19                      0.42  -0.23     1.30
  SINCE OCT 1      0.19                      0.42  -0.23     1.30
  SINCE JAN 1     22.38                     13.71   8.67    13.74

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

DEGREE DAYS
 HEATING
  YESTERDAY        4                         4      0        1
  MONTH TO DATE   32                        61    -29       38
  SINCE SEP 1     39                       114    -75       98
  SINCE JUL 1     99                       227   -128      201

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   18                        19     -1       12
  SINCE SEP 1    177                        63    114       72
  SINCE JAN 1    309                       160    149      137
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED    10.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86          1200 AM
 LOWEST     63          1200 PM
 AVERAGE    75

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


THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        89      1991
 MINIMUM TEMPERATURE (F)   53        37      1949


SUNRISE AND SUNSET
OCTOBER 20 2017.......SUNRISE   723 AM PDT   SUNSET   625 PM PDT
OCTOBER 21 2017.......SUNRISE   724 AM PDT   SUNSET   624 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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