Climatological Report (Daily)
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CDUS46 KMTR 170829
CLISJC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST SUN DEC 17 2017


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

...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         67    239 PM  70    1998  58      9       54
  MINIMUM         43   1058 AM  27    1893  42      1       43
  AVERAGE         55                        50      5       49

PRECIPITATION (IN)
  YESTERDAY        0.00          1.05 2002   0.08  -0.08      T
  MONTH TO DATE    T                         1.22  -1.22     0.98
  SINCE OCT 1      1.50                      3.70  -2.20     3.85
  SINCE JAN 1     15.58                     14.43   1.15    14.06

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

DEGREE DAYS
 HEATING
  YESTERDAY       10                        15     -5       16
  MONTH TO DATE  191                       233    -42      176
  SINCE DEC 1    191                       233    -42      176
  SINCE JUL 1    408                       640   -232      399

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    992                       637    355      706
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION  NW (300)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    10.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     15           300 PM
 AVERAGE    58

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


THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   58        72      1958
 MINIMUM TEMPERATURE (F)   42        26      1965


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   716 AM PST   SUNSET   452 PM PST
DECEMBER 18 2017......SUNRISE   717 AM PST   SUNSET   452 PM PST


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




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