Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 140831
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT MON SEP 14 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 13 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 79 3:09 PM 100 2003 81 -2 74
MINIMUM 49 7:19 AM 46 2002 51 -2 56
AVERAGE 64 66 -2 65
PRECIPITATION (IN)
YESTERDAY 0.00 T
MONTH TO DATE 0.10 T
SINCE OCT 1 17.13 16.08
SINCE JAN 1 9.70 8.10
DEGREE DAYS
HEATING
YESTERDAY 1 0
MONTH TO DATE 12 1
SINCE SEP 1 12 1
SINCE JUL 1 48 46
COOLING
YESTERDAY 0 0
MONTH TO DATE 36 28
SINCE SEP 1 36 28
SINCE JAN 1 210 139
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 8.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 11:00 PM
LOWEST 32 1:00 PM
AVERAGE 63
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 89 2004
MINIMUM TEMPERATURE (F) 51 45 2018
SUNRISE AND SUNSET
SEPTEMBER 14 2026.....SUNRISE 6:50 AM PDT SUNSET 7:18 PM PDT
SEPTEMBER 15 2026.....SUNRISE 6:51 AM PDT SUNSET 7:17 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$