Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 290040
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
540 PM PDT THU AUG 28 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 28 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 80 4:25 PM 100 2008 81 -1 80
MINIMUM 49 6:26 AM 45 2005 53 -4 55
AVERAGE 65 67 -2 68
PRECIPITATION (IN)
TODAY 0.00 0.00
MONTH TO DATE 0.00 T
SINCE OCT 1 16.08 19.88
SINCE JAN 1 8.10 13.84
DEGREE DAYS
HEATING
TODAY 0 0
MONTH TO DATE 7 8
SINCE JUN 1 109 50
SINCE JUL 1 45 13
COOLING
TODAY 0 3
MONTH TO DATE 56 74
SINCE JUN 1 76 288
SINCE JAN 1 93 298
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 6.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 6:00 AM
LOWEST 42 3:00 PM
AVERAGE 69
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 99 2009
MINIMUM TEMPERATURE (F) 53 46 2005
SUNRISE AND SUNSET
AUGUST 28 2025........SUNRISE 6:36 AM PDT SUNSET 7:44 PM PDT
AUGUST 29 2025........SUNRISE 6:37 AM PDT SUNSET 7:43 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$