249
CDUS46 KMTR 180840
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1240 AM PST TUE NOV 18 2025
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 17 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 57 MM 78 2008 64 -7 59
MINIMUM 51 9:27 PM 25 2000 40 11 35
AVERAGE 54 52 2 47
PRECIPITATION (IN)
YESTERDAY 0.84 0.02
MONTH TO DATE 1.90 0.74
SINCE OCT 1 3.21 0.75
SINCE JAN 1 11.53 14.59
DEGREE DAYS
HEATING
YESTERDAY 11 18
MONTH TO DATE 88 202
SINCE SEP 1 219 343
SINCE JUL 1 264 356
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE SEP 1 100 143
SINCE JAN 1 211 444
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 8.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 3:00 AM
LOWEST 77 3:00 PM
AVERAGE 87
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 78 2005
MINIMUM TEMPERATURE (F) 40 26 2000
SUNRISE AND SUNSET
NOVEMBER 18 2025......SUNRISE 6:54 AM PST SUNSET 4:54 PM PST
NOVEMBER 19 2025......SUNRISE 6:55 AM PST SUNSET 4:54 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page