Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 170829
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1229 AM PST TUE JAN 17 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         54    311 PM  70    2014  55     -1       58
  MINIMUM         33    747 AM  20    2007  37     -4       48
  AVERAGE         44                        46     -2       53

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.23
  MONTH TO DATE    7.74                                      3.47
  SINCE OCT 1     16.69                                      7.66
  SINCE JAN 1      7.74                                      3.47

DEGREE DAYS
 HEATING
  YESTERDAY       21                                        12
  MONTH TO DATE  263                                       271
  SINCE DEC 1    808                                       849
  SINCE JUL 1   1312                                      1390

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


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION   E (90)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     7.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           700 AM
 LOWEST     59           400 PM
 AVERAGE    76

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        71      2014
 MINIMUM TEMPERATURE (F)   37        19      2012


SUNRISE AND SUNSET
JANUARY 17 2017.......SUNRISE   723 AM PST   SUNSET   516 PM PST
JANUARY 18 2017.......SUNRISE   723 AM PST   SUNSET   517 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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