681
CDUS46 KMTR 300829
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1229 AM PST TUE DEC 30 2025
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 29 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 55 2:47 PM 64 2013 56 -1 61
2023
MINIMUM 33 7:44 AM 25 2015 38 -5 42
AVERAGE 44 47 -3 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.41
MONTH TO DATE 3.43 3.72
SINCE OCT 1 6.89 7.98
SINCE JAN 1 15.21 21.82
DEGREE DAYS
HEATING
YESTERDAY 21 13
MONTH TO DATE 463 347
SINCE DEC 1 463 347
SINCE JUL 1 938 887
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 211 444
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (100)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 10:00 PM
LOWEST 59 11:00 AM
AVERAGE 80
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 63 2013
2017
MINIMUM TEMPERATURE (F) 38 26 2015
SUNRISE AND SUNSET
DECEMBER 30 2025......SUNRISE 7:25 AM PST SUNSET 4:58 PM PST
DECEMBER 31 2025......SUNRISE 7:26 AM PST SUNSET 4:59 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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