Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 170830
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT FRI OCT 17 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR OCTOBER 16 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 70 3:45 PM 97 2020 76 -6 76
MINIMUM 44 6:17 AM 37 2019 46 -2 53
AVERAGE 57 61 -4 65
PRECIPITATION (IN)
YESTERDAY 0.00 T
MONTH TO DATE 1.25 T
SINCE OCT 1 1.25 T
SINCE JAN 1 9.57 13.84
DEGREE DAYS
HEATING
YESTERDAY 8 0
MONTH TO DATE 66 20
SINCE SEP 1 68 46
SINCE JUL 1 113 59
COOLING
YESTERDAY 0 0
MONTH TO DATE 9 82
SINCE SEP 1 99 140
SINCE JAN 1 210 441
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 3.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 54 3:00 PM
AVERAGE 77
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 95 2020
MINIMUM TEMPERATURE (F) 46 37 2006
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 7:20 AM PDT SUNSET 6:28 PM PDT
OCTOBER 18 2025.......SUNRISE 7:21 AM PDT SUNSET 6:27 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$