Climatological Report (Daily)
Issued by NWS

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017
CDUS46 KMTR 180826
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT WED SEP 18 2024

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR SEPTEMBER 17 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         68   2:40 PM  94    2000  80    -12       78
  MINIMUM         54  11:17 PM  42    2006  51      3       61
  AVERAGE         61                        66     -5       70

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.00                                      0.01
  SINCE OCT 1     19.88                                     29.52
  SINCE JAN 1     13.84                                     21.10

DEGREE DAYS
 HEATING
  YESTERDAY        4                                         0
  MONTH TO DATE   12                                         0
  SINCE SEP 1     12                                         0
  SINCE JUL 1     25                                         8

 COOLING
  YESTERDAY        0                                         5
  MONTH TO DATE   36                                        42
  SINCE SEP 1     36                                        42
  SINCE JAN 1    337                                       315
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     8.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          10:00 PM
 LOWEST     61           2:00 PM
 AVERAGE    76

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   80        98      2016
 MINIMUM TEMPERATURE (F)   51        38      2008


SUNRISE AND SUNSET
SEPTEMBER 18 2024.....SUNRISE   6:54 AM PDT   SUNSET   7:11 PM PDT
SEPTEMBER 19 2024.....SUNRISE   6:55 AM PDT   SUNSET   7:10 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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