Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 100836
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST SAT DEC 10 2016


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 9 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         62    217 PM  70    2012  56      6       62
  MINIMUM         53    726 AM  19    2013  36     17       52
  AVERAGE         58                        46     12       57

PRECIPITATION (IN)
  YESTERDAY        0.12                                      0.02
  MONTH TO DATE    0.68                                      0.16
  SINCE OCT 1      5.43                                      1.57
  SINCE JAN 1     20.10                                      5.67

DEGREE DAYS
 HEATING
  YESTERDAY        7                                         8
  MONTH TO DATE  142                                       129
  SINCE DEC 1    142                                       129
  SINCE JUL 1    646                                       670

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


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (170)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     4.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           100 AM
 LOWEST     84           100 PM
 AVERAGE    89

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        63      2014
                                             2012
 MINIMUM TEMPERATURE (F)   36        21      2013


SUNRISE AND SUNSET
DECEMBER 10 2016......SUNRISE   715 AM PST   SUNSET   449 PM PST
DECEMBER 11 2016......SUNRISE   716 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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