Climatological Report (Daily)
Issued by NWS
Issued by NWS
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793
CDUS46 KMTR 290025
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
525 PM PDT MON SEP 28 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 28 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 74 3:33 PM 103 2020 79 -5 69
MINIMUM 46 3:54 AM 40 2001 49 -3 60
AVERAGE 60 64 -4 65
PRECIPITATION (IN)
TODAY 0.00 0.00
MONTH TO DATE 0.10 0.12
SINCE OCT 1 17.13 16.20
SINCE JAN 1 9.70 8.22
DEGREE DAYS
HEATING
TODAY 5 0
MONTH TO DATE 45 2
SINCE SEP 1 45 2
SINCE JUL 1 81 47
COOLING
TODAY 0 0
MONTH TO DATE 52 85
SINCE SEP 1 52 85
SINCE JAN 1 226 196
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 6.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 51 2:00 PM
AVERAGE 76
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 96 1999
MINIMUM TEMPERATURE (F) 49 35 2019
SUNRISE AND SUNSET
SEPTEMBER 28 2026.....SUNRISE 7:02 AM PDT SUNSET 6:56 PM PDT
SEPTEMBER 29 2026.....SUNRISE 7:03 AM PDT SUNSET 6:55 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$