Climatological Report (Daily)
Issued by NWS
Issued by NWS
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874
CDUS46 KMTR 010033
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
533 PM PDT WED SEP 30 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 86 3:48 PM 98 2001 79 7 73
MINIMUM 51 6:44 AM 37 2009 49 2 63
AVERAGE 69 64 5 68
PRECIPITATION (IN)
TODAY 0.00 0.07
MONTH TO DATE 0.10 0.22
SINCE OCT 1 17.13 16.30
SINCE JAN 1 9.70 8.32
DEGREE DAYS
HEATING
TODAY 0 0
MONTH TO DATE 45 2
SINCE SEP 1 45 2
SINCE JUL 1 81 47
COOLING
TODAY 4 3
MONTH TO DATE 57 90
SINCE SEP 1 57 90
SINCE JAN 1 231 201
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 AM
LOWEST 37 3:00 PM
AVERAGE 65
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 99 2024
MINIMUM TEMPERATURE (F) 49 38 2006
2019
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.
$$