Climatological Report (Daily)
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
851
CDUS46 KMTR 050040
CLIAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
440 PM PST WED DEC 04 2024

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR DECEMBER 4 2024...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         67   2:45 PM  70    2020  59      8       65
  MINIMUM         37   6:41 AM  22    2004  38     -1       42
  AVERAGE         52                        48      4       54

PRECIPITATION (IN)
  TODAY            0.00                                      0.00
  MONTH TO DATE    0.00                                      0.06
  SINCE OCT 1      4.26                                      1.77
  SINCE JAN 1     18.10                                     22.98

DEGREE DAYS
 HEATING
  TODAY           13                                        11
  MONTH TO DATE   50                                        47
  SINCE DEC 1     50                                        47
  SINCE JUL 1    590                                       453

 COOLING
  TODAY            0                                         0
  MONTH TO DATE    0                                         0
  SINCE DEC 1      0                                         0
  SINCE JAN 1    444                                       389
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION  NW (320)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     3.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           4:00 AM
 LOWEST     47           3:00 PM
 AVERAGE    74

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   59        67      2023
 MINIMUM TEMPERATURE (F)   38        16      2013


SUNRISE AND SUNSET
DECEMBER  4 2024......SUNRISE   7:10 AM PST   SUNSET   4:49 PM PST
DECEMBER  5 2024......SUNRISE   7:11 AM PST   SUNSET   4:49 PM PST


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




$$