Climatological Report (Daily)
Issued by NWS

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578
CDUS46 KMTR 160827
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST SUN NOV 16 2025

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR NOVEMBER 15 2025...

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)
 YESTERDAY
  MAXIMUM         64   2:42 PM  84    2005  65     -1       61
                                      2010
  MINIMUM         45   8:01 AM  28    2009  40      5       35
  AVERAGE         55                        53      2       48

PRECIPITATION (IN)
  YESTERDAY        0.01                                      0.00
  MONTH TO DATE    1.02                                      0.72
  SINCE OCT 1      2.33                                      0.73
  SINCE JAN 1     10.65                                     14.57

DEGREE DAYS
 HEATING
  YESTERDAY       10                                        17
  MONTH TO DATE   71                                       168
  SINCE SEP 1    202                                       309
  SINCE JUL 1    247                                       322

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


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     6.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           3:00 AM
 LOWEST     72          12:00 PM
 AVERAGE    86

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        77      2008
 MINIMUM TEMPERATURE (F)   40        31      2009
                                             2022


SUNRISE AND SUNSET
NOVEMBER 16 2025......SUNRISE   6:52 AM PST   SUNSET   4:56 PM PST
NOVEMBER 17 2025......SUNRISE   6:53 AM PST   SUNSET   4:55 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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