Climatological Report (Daily)
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313
CDUS46 KMTR 200826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT FRI APR 20 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 19 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         68    305 PM  87    2009  69     -1       68
  MINIMUM         34    537 AM  33    2007  42     -8       42
  AVERAGE         51                        55     -4       55

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.18
  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       14                                        10
  MONTH TO DATE  199                                       165
  SINCE MAR 1    637                                       430
  SINCE JUL 1   2657                                      2313

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


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   W (250)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     4.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     44          1200 PM
 AVERAGE    72

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        90      2009
 MINIMUM TEMPERATURE (F)   42        33      2008


SUNRISE AND SUNSET
APRIL 20 2018.........SUNRISE   626 AM PDT   SUNSET   750 PM PDT
APRIL 21 2018.........SUNRISE   625 AM PDT   SUNSET   751 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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