Climatological Report (Daily)
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CDUS46 KMTR 200826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT THU JUL 20 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JULY 19 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         83    338 PM  91    2015  78      5       79
  MINIMUM         51    504 AM  47    2000  53     -2       51
  AVERAGE         67                        65      2       65

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    T                                         0.00
  SINCE OCT 1     37.11                                     18.86
  SINCE JAN 1     28.16                                     14.67

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    2                                        29
  SINCE JUN 1     19                                        55
  SINCE JUL 1      2                                        29

 COOLING
  YESTERDAY        2                                         0
  MONTH TO DATE   79                                        17
  SINCE JUN 1    202                                        68
  SINCE JAN 1    236                                        79
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     9.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           400 AM
 LOWEST     40           300 PM
 AVERAGE    65

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        89      2011
 MINIMUM TEMPERATURE (F)   53        47      2016


SUNRISE AND SUNSET
JULY 20 2017..........SUNRISE   602 AM PDT   SUNSET   829 PM PDT
JULY 21 2017..........SUNRISE   603 AM PDT   SUNSET   828 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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