Climatological Report (Daily)
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035
CDUS46 KMTR 200827
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1226 AM PST FRI JAN 20 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 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         58    256 PM  70    2014  55      3       62
  MINIMUM         47    811 AM  24    2007  37     10       48
  AVERAGE         53                        46      7       55

PRECIPITATION (IN)
  YESTERDAY        0.46                                      0.87
  MONTH TO DATE    9.63                                      5.78
  SINCE OCT 1     18.58                                      9.97
  SINCE JAN 1      9.63                                      5.78

DEGREE DAYS
 HEATING
  YESTERDAY       12                                        10
  MONTH TO DATE  312                                       298
  SINCE DEC 1    857                                       876
  SINCE JUL 1   1361                                      1417

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


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     7.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           300 AM
 LOWEST     72           300 PM
 AVERAGE    79

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        71      2014
 MINIMUM TEMPERATURE (F)   37        25      2007


SUNRISE AND SUNSET
JANUARY 20 2017.......SUNRISE   722 AM PST   SUNSET   519 PM PST
JANUARY 21 2017.......SUNRISE   722 AM PST   SUNSET   520 PM PST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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