Climatological Report (Daily)
Issued by NWS

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627
CDUS46 KMTR 240838
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT MON AUG 24 2026

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 23 2026...

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)
 YESTERDAY
  MAXIMUM         84   3:53 PM  96    2010  81      3       76
  MINIMUM         52   7:02 AM  45    2005  54     -2       55
  AVERAGE         68                        67      1       66

PRECIPITATION (IN)
  YESTERDAY        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
  YESTERDAY        0                                         0
  MONTH TO DATE    6                                         7
  SINCE JUN 1     50                                       109
  SINCE JUL 1     29                                        45

 COOLING
  YESTERDAY        3                                         1
  MONTH TO DATE   29                                        52
  SINCE JUN 1    145                                        72
  SINCE JAN 1    162                                        89
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     5.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           6:00 AM
 LOWEST     44           2:00 PM
 AVERAGE    71

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   81       104      2010
 MINIMUM TEMPERATURE (F)   54        47      2005


SUNRISE AND SUNSET
AUGUST 24 2026........SUNRISE   6:32 AM PDT   SUNSET   7:50 PM PDT
AUGUST 25 2026........SUNRISE   6:33 AM PDT   SUNSET   7:49 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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