930
CDUS46 KMTR 160832
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
132 AM PDT SUN AUG 16 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 15 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 74 4:38 PM 102 2020 80 -6 80
MINIMUM 55 11:35 PM 47 2000 55 0 53
2011
AVERAGE 65 67 -2 67
PRECIPITATION (IN)
YESTERDAY 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
YESTERDAY 0 0
MONTH TO DATE 5 5
SINCE JUN 1 49 107
SINCE JUL 1 28 43
COOLING
YESTERDAY 0 2
MONTH TO DATE 21 32
SINCE JUN 1 137 52
SINCE JAN 1 154 69
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 10:00 PM
LOWEST 59 3:00 PM
AVERAGE 76
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THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 101 2015
MINIMUM TEMPERATURE (F) 55 46 2014
SUNRISE AND SUNSET
AUGUST 16 2026........SUNRISE 6:25 AM PDT SUNSET 8:01 PM PDT
AUGUST 17 2026........SUNRISE 6:26 AM PDT SUNSET 8:00 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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