Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 190826
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1225 AM PST THU JAN 19 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 18 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         54    747 PM  70    2014  55     -1       61
                                      2009
  MINIMUM         46    914 AM  24    2001  37      9       49
  AVERAGE         50                        46      4       55

PRECIPITATION (IN)
  YESTERDAY        1.43                                      0.14
  MONTH TO DATE    9.17                                      4.91
  SINCE OCT 1     18.12                                      9.10
  SINCE JAN 1      9.17                                      4.91

DEGREE DAYS
 HEATING
  YESTERDAY       15                                        10
  MONTH TO DATE  300                                       288
  SINCE DEC 1    845                                       866
  SINCE JUL 1   1349                                      1407

 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  SE (120)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED    10.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89          1000 PM
 LOWEST     77           100 PM
 AVERAGE    83

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        70      2014
 MINIMUM TEMPERATURE (F)   37        24      2007


SUNRISE AND SUNSET
JANUARY 19 2017.......SUNRISE   723 AM PST   SUNSET   518 PM PST
JANUARY 20 2017.......SUNRISE   722 AM PST   SUNSET   519 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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