Climatological Report (Daily)
Issued by NWS

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369
CDUS46 KMTR 250825
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT TUE JUL 25 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JULY 24 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         75   1230 PM  93    2006  78     -3       82
  MINIMUM         57   1153 PM  45    2002  53      4       50
  AVERAGE         66                        65      1       66

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    T                                         0.00
  SINCE OCT 1     37.11                                     18.86
  SINCE JAN 1     28.16                                     14.67

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    2                                        34
  SINCE JUN 1     19                                        60
  SINCE JUL 1      2                                        34

 COOLING
  YESTERDAY        1                                         1
  MONTH TO DATE   98                                        22
  SINCE JUN 1    221                                        73
  SINCE JAN 1    255                                        84
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED    11.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           400 AM
 LOWEST     53          1200 PM
 AVERAGE    70

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        98      2014
 MINIMUM TEMPERATURE (F)   53        47      2008


SUNRISE AND SUNSET
JULY 25 2017..........SUNRISE   606 AM PDT   SUNSET   825 PM PDT
JULY 26 2017..........SUNRISE   607 AM PDT   SUNSET   824 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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