Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 210826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT MON AUG 21 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 20 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         76    127 PM  87    2007  80     -4       76
  MINIMUM         60    554 AM  46    2000  52      8       55
  AVERAGE         68                        66      2       66

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                                        17
  SINCE JUN 1     27                                        80
  SINCE JUL 1     10                                        54

 COOLING
  YESTERDAY        3                                         1
  MONTH TO DATE   65                                        12
  SINCE JUN 1    299                                        97
  SINCE JAN 1    333                                       108
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    11.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1200 AM
 LOWEST     54           100 PM
 AVERAGE    69

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   80        90      2009
 MINIMUM TEMPERATURE (F)   52        47      2001


SUNRISE AND SUNSET
AUGUST 21 2017........SUNRISE   629 AM PDT   SUNSET   754 PM PDT
AUGUST 22 2017........SUNRISE   630 AM PDT   SUNSET   753 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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