152
CDUS46 KMTR 090825
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT SAT AUG 09 2025
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 8 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 85 4:07 PM 97 2002 79 6 74
MINIMUM 57 6:48 AM 45 2002 55 2 54
AVERAGE 71 67 4 64
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 1
MONTH TO DATE 5 1
SINCE JUN 1 107 43
SINCE JUL 1 43 6
COOLING
YESTERDAY 6 0
MONTH TO DATE 18 26
SINCE JUN 1 38 240
SINCE JAN 1 55 250
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 6.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 40 2:00 PM
AVERAGE 67
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 100 2002
MINIMUM TEMPERATURE (F) 55 49 2009
SUNRISE AND SUNSET
AUGUST 9 2025........SUNRISE 6:19 AM PDT SUNSET 8:09 PM PDT
AUGUST 10 2025........SUNRISE 6:20 AM PDT SUNSET 8:08 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