Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 250831
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1230 AM PST THU DEC 25 2014


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 24 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         59   1227 PM  65    2013  55      4       65
  MINIMUM         37   1044 PM  19    1998  36      1       33
  AVERAGE         48                        45      3       49

PRECIPITATION (IN)
  YESTERDAY        T                                         0.00
  MONTH TO DATE   10.14                                      0.47
  SINCE JUL 1     12.77                                      2.20
  SINCE JAN 1     21.04                                      4.17

DEGREE DAYS
 HEATING
  YESTERDAY       17                                        16
  MONTH TO DATE  260                                       532
  SINCE DEC 1    260                                       532
  SINCE JUL 1    733                                      1211

 COOLING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE DEC 1      0                                         0
  SINCE JAN 1    267                                       303
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     8.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     61           400 PM
 AVERAGE    81

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        65      2013
 MINIMUM TEMPERATURE (F)   36        24      1998


SUNRISE AND SUNSET
DECEMBER 25 2014......SUNRISE   724 AM PST   SUNSET   455 PM PST
DECEMBER 26 2014......SUNRISE   724 AM PST   SUNSET   455 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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