Climatological Report (Daily)
Issued by NWS

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840
CDUS46 KMTR 040032
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
532 PM PDT FRI OCT 03 2025

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR OCTOBER 3 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         74        MM  94    2014  78     -4       93
  MINIMUM         56        MM  38    2005  48      8       53
  AVERAGE         65                        63      2       73

PRECIPITATION (IN)
  TODAY            T                                         0.00
  MONTH TO DATE    0.08                                      0.00
  SINCE OCT 1      0.08                                      0.00
  SINCE JAN 1      8.40                                     13.84

DEGREE DAYS
 HEATING
  TODAY            0                                         0
  MONTH TO DATE    0                                         0
  SINCE SEP 1      2                                        26
  SINCE JUL 1     47                                        39

 COOLING
  TODAY            0                                         8
  MONTH TO DATE    3                                        31
  SINCE SEP 1     93                                        89
  SINCE JAN 1    204                                       390
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SW (240)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED     6.8


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    96           3:00 AM
 LOWEST     53           1:00 PM
 AVERAGE    75

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        94      2014
                                             2023
 MINIMUM TEMPERATURE (F)   48        35      2009


SUNRISE AND SUNSET
OCTOBER  3 2025.......SUNRISE   7:07 AM PDT   SUNSET   6:48 PM PDT
OCTOBER  4 2025.......SUNRISE   7:08 AM PDT   SUNSET   6:47 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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