Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 100828
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT SUN AUG 10 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR AUGUST 9 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 81 3:16 PM 100 2002 79 2 74
MINIMUM 56 6:57 AM 49 2009 55 1 52
AVERAGE 69 67 2 63
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 2
MONTH TO DATE 5 3
SINCE JUN 1 107 45
SINCE JUL 1 43 8
COOLING
YESTERDAY 4 0
MONTH TO DATE 22 26
SINCE JUN 1 42 240
SINCE JAN 1 59 250
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 8.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 AM
LOWEST 45 2:00 PM
AVERAGE 71
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 93 2002
MINIMUM TEMPERATURE (F) 55 47 2003
SUNRISE AND SUNSET
AUGUST 10 2025........SUNRISE 6:20 AM PDT SUNSET 8:08 PM PDT
AUGUST 11 2025........SUNRISE 6:21 AM PDT SUNSET 8:07 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$