Climatological Report (Daily)
Issued by NWS

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730
CDUS46 KMTR 240035
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
535 PM PDT THU JUL 23 2026

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JULY 23 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         83        MM 102    2006  78      5       72
  MINIMUM         55        MM  48    2000  55      0       56
  AVERAGE         69                        67      2       64

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

DEGREE DAYS
 HEATING
  TODAY            0                                         1
  MONTH TO DATE   23                                        32
  SINCE JUN 1     44                                        96
  SINCE JUL 1     23                                        32

 COOLING
  TODAY            4                                         0
  MONTH TO DATE   58                                         9
  SINCE JUN 1     97                                        17
  SINCE JAN 1    114                                        34
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   8   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED    10.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           5:00 AM
 LOWEST     41           3:00 PM
 AVERAGE    71

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        93      2006
 MINIMUM TEMPERATURE (F)   55        45      2002


SUNRISE AND SUNSET
JULY 23 2026..........SUNRISE   6:04 AM PDT   SUNSET   8:26 PM PDT
JULY 24 2026..........SUNRISE   6:05 AM PDT   SUNSET   8:26 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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