866
CDUS46 KMTR 100830
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT THU JUL 10 2025
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 9 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 77 5:56 PM 100 2002 79 -2 77
MINIMUM 55 7:02 AM 45 2009 54 1 56
AVERAGE 66 67 -1 67
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.00 0.00
SINCE OCT 1 16.08 19.88
SINCE JAN 1 8.10 13.84
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 22 0
SINCE JUN 1 86 37
SINCE JUL 1 22 0
COOLING
YESTERDAY 1 2
MONTH TO DATE 1 66
SINCE JUN 1 9 122
SINCE JAN 1 26 132
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 10.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 4:00 AM
LOWEST 48 5:00 PM
AVERAGE 69
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 92 2002
MINIMUM TEMPERATURE (F) 55 46 2016
SUNRISE AND SUNSET
JULY 10 2025..........SUNRISE 5:55 AM PDT SUNSET 8:34 PM PDT
JULY 11 2025..........SUNRISE 5:56 AM PDT SUNSET 8:34 PM PDT
- 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