Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 310836
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1236 AM PST SAT JAN 31 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JANUARY 30 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         62    437 PM  64    2013  57      5       63
                                      2009
  MINIMUM         36    637 AM  23    2002  38     -2       48
  AVERAGE         49                        47      2       56

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.05
  MONTH TO DATE    T                                         0.06
  SINCE JUL 1     12.77                                      2.26
  SINCE JAN 1      T                                         0.06

DEGREE DAYS
 HEATING
  YESTERDAY       16                                         9
  MONTH TO DATE  512                                       470
  SINCE DEC 1    913                                      1136
  SINCE JUL 1   1386                                      1815

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


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION  SE (150)
  HIGHEST WIND SPEED     7   HIGHEST WIND DIRECTION    SE (120)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     1.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 AM
 LOWEST     67           400 PM
 AVERAGE    84

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        65      2013
 MINIMUM TEMPERATURE (F)   38        23      2001


SUNRISE AND SUNSET
JANUARY 31 2015.......SUNRISE   715 AM PST   SUNSET   531 PM PST
FEBRUARY  1 2015......SUNRISE   714 AM PST   SUNSET   532 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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