Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 070845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1245 AM PST WED DEC 7 2016


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 6 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         58    200 PM  66    2006  57      1       57
  MINIMUM         31    654 AM  20    2013  36     -5       45
  AVERAGE         45                        47     -2       51

PRECIPITATION (IN)
  YESTERDAY        0.00                                       T
  MONTH TO DATE    0.00                                      0.14
  SINCE OCT 1      4.75                                      1.55
  SINCE JAN 1     19.42                                      5.65

DEGREE DAYS
 HEATING
  YESTERDAY       20                                        14
  MONTH TO DATE   95                                        97
  SINCE DEC 1     95                                        97
  SINCE JUL 1    599                                       638

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


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     5.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           200 AM
 LOWEST     47           100 PM
 AVERAGE    70

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        70      2001
 MINIMUM TEMPERATURE (F)   36        22      2009


SUNRISE AND SUNSET
DECEMBER  7 2016......SUNRISE   713 AM PST   SUNSET   449 PM PST
DECEMBER  8 2016......SUNRISE   714 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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