597
CDUS46 KMTR 010830
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT SAT AUG 01 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 31 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 81 4:04 PM 91 2000 79 2 76
MINIMUM 53 6:55 AM 30 2017 55 -2 58
AVERAGE 67 67 0 67
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE T T
SINCE OCT 1 17.03 16.08
SINCE JAN 1 9.60 8.10
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 23 38
SINCE JUN 1 44 102
SINCE JUL 1 23 38
COOLING
YESTERDAY 2 2
MONTH TO DATE 77 12
SINCE JUN 1 116 20
SINCE JAN 1 133 37
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 9.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 AM
LOWEST 42 2:00 PM
AVERAGE 70
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 92 2000
MINIMUM TEMPERATURE (F) 55 48 2008
SUNRISE AND SUNSET
AUGUST 1 2026........SUNRISE 6:12 AM PDT SUNSET 8:19 PM PDT
AUGUST 2 2026........SUNRISE 6:13 AM PDT SUNSET 8:17 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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