216
CDUS46 KMTR 020044
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
544 PM PDT TUE SEP 01 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 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 73 3:00 PM 106 2017 81 -8 89
MINIMUM 58 5:25 AM 45 1999 53 5 55
AVERAGE 66 67 -1 72
PRECIPITATION (IN)
TODAY 0.00 0.00
MONTH TO DATE 0.00 0.00
SINCE OCT 1 17.03 16.08
SINCE JAN 1 9.60 8.10
DEGREE DAYS
HEATING
TODAY 0 0
MONTH TO DATE 0 0
SINCE SEP 1 0 0
SINCE JUL 1 36 45
COOLING
TODAY 1 7
MONTH TO DATE 1 7
SINCE SEP 1 1 7
SINCE JAN 1 175 118
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 12.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 4:00 AM
LOWEST 53 12:00 PM
AVERAGE 72
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 107 2017
MINIMUM TEMPERATURE (F) 53 46 2008
SUNRISE AND SUNSET
SEPTEMBER 1 2026.....SUNRISE 6:39 AM PDT SUNSET 7:38 PM PDT
SEPTEMBER 2 2026.....SUNRISE 6:40 AM PDT SUNSET 7:37 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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