Climatological Report (Daily)
Issued by NWS

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364
CDUS46 KMTR 260038
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
538 PM PDT TUE AUG 25 2026

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 25 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         80   4:54 PM  98    1999  81     -1       76
  MINIMUM         57   7:32 AM  47    2000  54      3       56
  AVERAGE         69                        67      2       66

PRECIPITATION (IN)
  TODAY            0.00                                      0.00
  MONTH TO DATE    T                                         0.00
  SINCE OCT 1     17.03                                     16.08
  SINCE JAN 1      9.60                                      8.10

DEGREE DAYS
 HEATING
  TODAY            0                                         0
  MONTH TO DATE    6                                         7
  SINCE JUN 1     50                                       109
  SINCE JUL 1     29                                        45

 COOLING
  TODAY            4                                         1
  MONTH TO DATE   33                                        54
  SINCE JUN 1    149                                        74
  SINCE JAN 1    166                                        91
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (240)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     9.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           2:00 AM
 LOWEST     51           4:00 PM
 AVERAGE    72

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   81        98      2017
 MINIMUM TEMPERATURE (F)   54        45      2005


SUNRISE AND SUNSET
AUGUST 25 2026........SUNRISE   6:33 AM PDT   SUNSET   7:49 PM PDT
AUGUST 26 2026........SUNRISE   6:34 AM PDT   SUNSET   7:47 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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