Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 190858
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1258 AM PST FRI JAN 19 2018


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 18 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         57    329 PM  70    2014  55      2       54
                                      2009
  MINIMUM         48   1107 PM  24    2001  37     11       46
  AVERAGE         53                        46      7       50

PRECIPITATION (IN)
  YESTERDAY        0.15                                      1.43
  MONTH TO DATE    2.70                                      9.17
  SINCE OCT 1      5.73                                     18.12
  SINCE JAN 1      2.70                                      9.17

DEGREE DAYS
 HEATING
  YESTERDAY       12                                        15
  MONTH TO DATE  247                                       300
  SINCE DEC 1    795                                       845
  SINCE JUL 1   1323                                      1349

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


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  SW (240)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     5.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 AM
 LOWEST     86          1000 PM
 AVERAGE    93

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


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 2018.......SUNRISE   723 AM PST   SUNSET   517 PM PST
JANUARY 20 2018.......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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