Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 220832
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
132 AM PDT TUE MAY 22 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR MAY 21 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         MM        MM  96    2000  73     MM       87
  MINIMUM         MM        MM  39    2008  46     MM       49
  AVERAGE         MM                        60     MM       68

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.00                                       T
  SINCE OCT 1     15.79                                     36.85
  SINCE JAN 1     12.76                                     27.90

DEGREE DAYS
 HEATING
  YESTERDAY       MM                                         0
  MONTH TO DATE   99                                        77
  SINCE MAR 1    801                                       556
  SINCE JUL 1   2821                                      2439

 COOLING
  YESTERDAY       MM                                         3
  MONTH TO DATE    2                                        29
  SINCE MAR 1      2                                        31
  SINCE JAN 1      2                                        31
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED    10.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           900 PM
 LOWEST     53          1200 PM
 AVERAGE    70

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        92      2000
 MINIMUM TEMPERATURE (F)   46        35      2013
                                             2010


SUNRISE AND SUNSET
MAY 22 2018...........SUNRISE   553 AM PDT   SUNSET   819 PM PDT
MAY 23 2018...........SUNRISE   552 AM PDT   SUNSET   820 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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