Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 050029
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
528 PM PDT FRI SEP 4 2015


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR SEPTEMBER 4 2015...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         77    305 PM 100    2004  81     -4       76
  MINIMUM         44    559 AM  43    2000  51     -7       56
  AVERAGE         61                        66     -5       66

PRECIPITATION (IN)
  TODAY            0.00                                      0.00
  MONTH TO DATE    0.00                                      0.00
  SINCE OCT 1     16.43                                      9.70
  SINCE JAN 1      4.04                                      8.34

DEGREE DAYS
 HEATING
  TODAY            4                                         0
  MONTH TO DATE    4                                         0
  SINCE SEP 1      4                                         0
  SINCE JUL 1     10                                        22

 COOLING
  TODAY            0                                         1
  MONTH TO DATE    4                                        11
  SINCE SEP 1      4                                        11
  SINCE JAN 1    267                                       184
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     8.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 AM
 LOWEST     33           400 PM
 AVERAGE    67

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   81        99      2008
 MINIMUM TEMPERATURE (F)   51        44      2010
                                             2005


SUNRISE AND SUNSET
SEPTEMBER  4 2015.....SUNRISE   641 AM PDT   SUNSET   734 PM PDT
SEPTEMBER  5 2015.....SUNRISE   642 AM PDT   SUNSET   733 PM PDT


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




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