032
CDUS46 KMTR 050037
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
437 PM PST THU DEC 04 2025
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 4 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 52 4:02 PM 70 2020 59 -7 67
MINIMUM 37 1:30 AM 22 2004 38 -1 37
AVERAGE 45 48 -3 52
PRECIPITATION (IN)
TODAY 0.00 0.00
MONTH TO DATE T 0.00
SINCE OCT 1 3.46 4.26
SINCE JAN 1 11.78 18.10
DEGREE DAYS
HEATING
TODAY 20 13
MONTH TO DATE 68 50
SINCE DEC 1 68 50
SINCE JUL 1 543 590
COOLING
TODAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 211 444
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 11.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 7:00 AM
LOWEST 71 2:00 PM
AVERAGE 84
......................................................
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 2025......SUNRISE 7:10 AM PST SUNSET 4:49 PM PST
DECEMBER 5 2025......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.
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