Climatological Report (Daily)
Issued by NWS

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197
CDUS46 KMTR 210826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT SAT APR 21 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 20 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         73    232 PM  90    2009  69      4       71
  MINIMUM         39    407 AM  33    2008  42     -3       48
  AVERAGE         56                        55      1       60

PRECIPITATION (IN)
  YESTERDAY        0.00                                       T
  MONTH TO DATE    3.76                                      3.10
  SINCE OCT 1     15.79                                     36.84
  SINCE JAN 1     12.76                                     27.89

DEGREE DAYS
 HEATING
  YESTERDAY        9                                         5
  MONTH TO DATE  208                                       170
  SINCE MAR 1    646                                       435
  SINCE JUL 1   2666                                      2318

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


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     6.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 AM
 LOWEST     47           500 PM
 AVERAGE    74

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        91      2009
 MINIMUM TEMPERATURE (F)   42        30      2008


SUNRISE AND SUNSET
APRIL 21 2018.........SUNRISE   625 AM PDT   SUNSET   751 PM PDT
APRIL 22 2018.........SUNRISE   624 AM PDT   SUNSET   752 PM PDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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