Climatological Report (Daily)
Issued by NWS
Issued by NWS
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584
CDUS46 KMTR 150838
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT FRI AUG 15 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 14 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 75 3:30 PM 106 2020 80 -5 80
MINIMUM 57 6:42 AM 47 2007 55 2 56
AVERAGE 66 67 -1 68
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.00 0.00
SINCE OCT 1 16.08 19.88
SINCE JAN 1 8.10 13.84
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 5 6
SINCE JUN 1 107 48
SINCE JUL 1 43 11
COOLING
YESTERDAY 1 3
MONTH TO DATE 30 30
SINCE JUN 1 50 244
SINCE JAN 1 67 254
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 11.5
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 3:00 AM
LOWEST 60 1:00 PM
AVERAGE 77
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 102 2020
MINIMUM TEMPERATURE (F) 55 47 2000
2011
SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE 6:24 AM PDT SUNSET 8:02 PM PDT
AUGUST 16 2025........SUNRISE 6:25 AM PDT SUNSET 8:01 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$