Climatological Report (Daily)
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CDUS46 KMTR 110837
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1237 AM PST SUN DEC 11 2016


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 10 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         60    433 PM  63    2014  56      4       62
                                      2012
  MINIMUM         43   1101 PM  21    2013  36      7       47
  AVERAGE         52                        46      6       55

PRECIPITATION (IN)
  YESTERDAY        0.25                                      0.12
  MONTH TO DATE    0.93                                      0.28
  SINCE OCT 1      5.68                                      1.69
  SINCE JAN 1     20.35                                      5.79

DEGREE DAYS
 HEATING
  YESTERDAY       13                                        10
  MONTH TO DATE  155                                       139
  SINCE DEC 1    155                                       139
  SINCE JUL 1    659                                       680

 COOLING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE DEC 1      0                                         0
  SINCE JAN 1    186                                       378
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED    10.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 AM
 LOWEST     80           500 PM
 AVERAGE    87

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        64      2014
                                             2005
 MINIMUM TEMPERATURE (F)   36        25      2013


SUNRISE AND SUNSET
DECEMBER 11 2016......SUNRISE   716 AM PST   SUNSET   449 PM PST
DECEMBER 12 2016......SUNRISE   717 AM PST   SUNSET   449 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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