950
CDUS46 KMTR 310828
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT MON AUG 31 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 30 2026
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)
YESTERDAY
MAXIMUM 72 4:20 PM 96 2023 81 -9 94
MINIMUM 49 4:44 AM 44 2010 53 -4 52
AVERAGE 61 67 -6 73
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE T 0.00
SINCE OCT 1 17.03 16.08
SINCE JAN 1 9.60 8.10
DEGREE DAYS
HEATING
YESTERDAY 4 0
MONTH TO DATE 12 7
SINCE JUN 1 56 109
SINCE JUL 1 35 45
COOLING
YESTERDAY 0 8
MONTH TO DATE 41 66
SINCE JUN 1 157 86
SINCE JAN 1 174 103
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 9.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 59 3:00 PM
AVERAGE 78
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 97 2017
MINIMUM TEMPERATURE (F) 53 42 2008
SUNRISE AND SUNSET
AUGUST 31 2026........SUNRISE 6:38 AM PDT SUNSET 7:40 PM PDT
SEPTEMBER 1 2026.....SUNRISE 6:39 AM PDT SUNSET 7:38 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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