Climatological Report (Daily)
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CDUS46 KMTR 210845
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1245 AM PST SAT JAN 21 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 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         56    221 PM  71    2014  55      1       59
  MINIMUM         47   1052 PM  25    2007  37     10       44
  AVERAGE         52                        46      6       52

PRECIPITATION (IN)
  YESTERDAY        0.79                                      0.00
  MONTH TO DATE   10.42                                      5.78
  SINCE OCT 1     19.37                                      9.97
  SINCE JAN 1     10.42                                      5.78

DEGREE DAYS
 HEATING
  YESTERDAY       13                                        13
  MONTH TO DATE  325                                       311
  SINCE DEC 1    870                                       889
  SINCE JUL 1   1374                                      1430

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


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   S (180)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    SE (120)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED    11.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           500 AM
 LOWEST     66           200 PM
 AVERAGE    76

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        68      2007
 MINIMUM TEMPERATURE (F)   37        26      2008


SUNRISE AND SUNSET
JANUARY 21 2017.......SUNRISE   722 AM PST   SUNSET   520 PM PST
JANUARY 22 2017.......SUNRISE   721 AM PST   SUNSET   521 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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