Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 180845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
145 AM PDT THU APR 18 2019


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR APRIL 17 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2019


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         70    501 PM  81    2016  68      2       62
  MINIMUM         40    546 AM  32    2004  42     -2       34
  AVERAGE         55                        55      0       48

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.29                                      3.76
  SINCE OCT 1     23.07                                     15.79
  SINCE JAN 1     19.87                                     12.76

DEGREE DAYS
 HEATING
  YESTERDAY       10                                        17
  MONTH TO DATE  134                                       169
  SINCE MAR 1    522                                       607
  SINCE JUL 1   2481                                      2627

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


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (190)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     4.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           500 AM
 LOWEST     53           200 PM
 AVERAGE    77

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        83      2016
 MINIMUM TEMPERATURE (F)   42        33      2005


SUNRISE AND SUNSET
APRIL 18 2019.........SUNRISE   629 AM PDT   SUNSET   748 PM PDT
APRIL 19 2019.........SUNRISE   628 AM PDT   SUNSET   749 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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