849
CDUS46 KMTR 040037
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
537 PM PDT THU SEP 03 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 3 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 70 1:43 PM 96 2008 81 -11 80
2024
MINIMUM 56 4:58 AM 44 2000 53 3 52
AVERAGE 63 67 -4 66
PRECIPITATION (IN)
TODAY 0.02 0.00
MONTH TO DATE 0.02 T
SINCE OCT 1 17.05 16.08
SINCE JAN 1 9.62 8.10
DEGREE DAYS
HEATING
TODAY 2 0
MONTH TO DATE 3 0
SINCE SEP 1 3 0
SINCE JUL 1 39 45
COOLING
TODAY 0 1
MONTH TO DATE 0 10
SINCE SEP 1 0 10
SINCE JAN 1 174 121
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 10.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 AM
LOWEST 73 10:00 AM
AVERAGE 85
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 100 2004
2022
MINIMUM TEMPERATURE (F) 53 43 2000
SUNRISE AND SUNSET
SEPTEMBER 3 2026.....SUNRISE 6:41 AM PDT SUNSET 7:35 PM PDT
SEPTEMBER 4 2026.....SUNRISE 6:41 AM PDT SUNSET 7:34 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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