Climatological Report (Daily)
Issued by NWS

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557
CDUS46 KMTR 230840
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
140 AM PDT SUN APR 23 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 22 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         69   1208 PM  87    2013  69      0       61
  MINIMUM         43    315 AM  35    2004  42      1       50
  AVERAGE         56                        56      0       56

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.25
  MONTH TO DATE    3.10                                      0.94
  SINCE OCT 1     36.84                                     18.61
  SINCE JAN 1     27.89                                     14.42

DEGREE DAYS
 HEATING
  YESTERDAY        9                                         9
  MONTH TO DATE  183                                       150
  SINCE MAR 1    448                                       484
  SINCE JUL 1   2331                                      2375

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


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION   W (260)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     9.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           400 AM
 LOWEST     58          1100 AM
 AVERAGE    74

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        84      2013
 MINIMUM TEMPERATURE (F)   42        34      2008


SUNRISE AND SUNSET
APRIL 23 2017.........SUNRISE   622 AM PDT   SUNSET   753 PM PDT
APRIL 24 2017.........SUNRISE   621 AM PDT   SUNSET   754 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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