Climatological Report (Daily)
Issued by NWS
Issued by NWS
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061
CDUS46 KMTR 300838
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT WED SEP 30 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 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 85 3:34 PM 96 1999 79 6 72
MINIMUM 47 7:35 AM 35 2019 49 -2 62
AVERAGE 66 64 2 67
PRECIPITATION (IN)
YESTERDAY 0.00 0.03
MONTH TO DATE 0.10 0.15
SINCE OCT 1 17.13 16.23
SINCE JAN 1 9.70 8.25
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 45 2
SINCE SEP 1 45 2
SINCE JUL 1 81 47
COOLING
YESTERDAY 1 2
MONTH TO DATE 53 87
SINCE SEP 1 53 87
SINCE JAN 1 227 198
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 4.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 35 5:00 PM
AVERAGE 68
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 98 2001
MINIMUM TEMPERATURE (F) 49 37 2009
SUNRISE AND SUNSET
SEPTEMBER 30 2026.....SUNRISE 7:04 AM PDT SUNSET 6:53 PM PDT
OCTOBER 1 2026.......SUNRISE 7:05 AM PDT SUNSET 6:52 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$