Climatological Report (Daily)
Issued by NWS

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913
CDUS46 KMTR 190041
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
441 PM PST TUE NOV 18 2025

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR NOVEMBER 18 2025...
VALID TODAY AS OF 0400 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         62   3:49 PM  78    2005  64     -2       60
  MINIMUM         47   8:27 AM  26    2000  40      7       35
  AVERAGE         55                        52      3       48

PRECIPITATION (IN)
  TODAY            0.01                                      0.00
  MONTH TO DATE    1.91                                      0.74
  SINCE OCT 1      3.22                                      0.75
  SINCE JAN 1     11.54                                     14.59

DEGREE DAYS
 HEATING
  TODAY           10                                        17
  MONTH TO DATE   98                                       219
  SINCE SEP 1    229                                       360
  SINCE JUL 1    274                                       373

 COOLING
  TODAY            0                                         0
  MONTH TO DATE    0                                         0
  SINCE SEP 1    100                                       143
  SINCE JAN 1    211                                       444
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION   E (80)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     5.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           4:00 AM
 LOWEST     62           2:00 PM
 AVERAGE    79

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   64        72      2005
 MINIMUM TEMPERATURE (F)   40        29      2009


SUNRISE AND SUNSET
NOVEMBER 18 2025......SUNRISE   6:54 AM PST   SUNSET   4:54 PM PST
NOVEMBER 19 2025......SUNRISE   6:55 AM PST   SUNSET   4:54 PM PST


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




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