Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 210836
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
135 AM PDT TUE APR 21 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 20 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         66    349 PM  90    2009  69     -3       78
  MINIMUM         51   1208 AM  33    2008  42      9       41
  AVERAGE         59                        55      4       60

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    1.01                                      0.98
  SINCE OCT 1     15.84                                      8.64
  SINCE JAN 1      3.45                                      7.28

DEGREE DAYS
 HEATING
  YESTERDAY        6                                         5
  MONTH TO DATE  222                                       159
  SINCE MAR 1    517                                       462
  SINCE JUL 1   2245                                      2669

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


WIND (MPH)
  RESULTANT WIND SPEED  12   RESULTANT WIND DIRECTION   W (260)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    13.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96          1200 AM
 LOWEST     63           400 PM
 AVERAGE    80

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


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 2015.........SUNRISE   625 AM PDT   SUNSET   751 PM PDT
APRIL 22 2015.........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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