Climatological Report (Daily) 
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810
CDUS46 KMTR 040827
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST TUE NOV 04 2025
...................................
...THE NAPA AIRPORT  CLIMATE SUMMARY FOR NOVEMBER 3 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         68   2:58 PM  83    2018  70     -2       74
  MINIMUM         50   5:22 AM  31    2022  43      7       40
  AVERAGE         59                        56      3       57
PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.00                                      0.35
  SINCE OCT 1      1.31                                      0.36
  SINCE JAN 1      9.63                                     14.20
DEGREE DAYS
 HEATING
  YESTERDAY        6                                         8
  MONTH TO DATE   15                                        30
  SINCE SEP 1    146                                       171
  SINCE JUL 1    191                                       184
 COOLING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE SEP 1    100                                       143
  SINCE JAN 1    211                                       444
...................................................................
WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SW (240)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     6.9
SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           1:00 AM
 LOWEST     54           2:00 PM
 AVERAGE    77
..........................................................
THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        83      2010
 MINIMUM TEMPERATURE (F)   42        31      2013
SUNRISE AND SUNSET
NOVEMBER  4 2025......SUNRISE   6:39 AM PST   SUNSET   5:06 PM PST
NOVEMBER  5 2025......SUNRISE   6:40 AM PST   SUNSET   5:05 PM PST
-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.
$$