Climatological Report (Daily)
Issued by NWS

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490
CDUS46 KMTR 220025
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
425 PM PST TUE NOV 21 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR NOVEMBER 21 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         70    158 PM  73    2005  62      8       63
  MINIMUM         52    733 AM  27    2003  38     14       42
  AVERAGE         61                        50     11       53

PRECIPITATION (IN)
  TODAY            0.00                                      0.00
  MONTH TO DATE    2.27                                      0.35
  SINCE OCT 1      2.46                                      4.16
  SINCE JAN 1     30.64                                     18.83

DEGREE DAYS
 HEATING
  TODAY            4                                        12
  MONTH TO DATE  230                                       143
  SINCE SEP 1    412                                       317
  SINCE JUL 1    422                                       374

 COOLING
  TODAY            0                                         0
  MONTH TO DATE    0                                         0
  SINCE SEP 1    148                                        67
  SINCE JAN 1    530                                       186
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   E (100)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (90)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     E (90)
  AVERAGE WIND SPEED     9.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           100 AM
 LOWEST     57           200 PM
 AVERAGE    73

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   61        74      2005
 MINIMUM TEMPERATURE (F)   38        26      2003


SUNRISE AND SUNSET
NOVEMBER 21 2017......SUNRISE   657 AM PST   SUNSET   453 PM PST
NOVEMBER 22 2017......SUNRISE   658 AM PST   SUNSET   452 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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