Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 080835
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST THU DEC 8 2016


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 7 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         51    307 PM  70    2001  57     -6       61
  MINIMUM         28    624 AM  22    2009  36     -8       47
  AVERAGE         40                        46     -6       54

PRECIPITATION (IN)
  YESTERDAY        0.30                                      0.00
  MONTH TO DATE    0.30                                      0.14
  SINCE OCT 1      5.05                                      1.55
  SINCE JAN 1     19.72                                      5.65

DEGREE DAYS
 HEATING
  YESTERDAY       25                                        11
  MONTH TO DATE  120                                       108
  SINCE DEC 1    120                                       108
  SINCE JUL 1    624                                       649

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


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   E (90)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     E (90)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     E (90)
  AVERAGE WIND SPEED     6.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          1200 AM
 LOWEST     41           300 PM
 AVERAGE    67

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        65      2014
 MINIMUM TEMPERATURE (F)   36        19      2009


SUNRISE AND SUNSET
DECEMBER  8 2016......SUNRISE   714 AM PST   SUNSET   449 PM PST
DECEMBER  9 2016......SUNRISE   715 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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