Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 130036
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
536 PM PDT TUE MAY 12 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 12 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 69 3:05 PM 84 2014 72 -3 66
MINIMUM 51 5:59 AM 37 2009 47 4 51
AVERAGE 60 60 0 59
PRECIPITATION (IN)
TODAY T 0.20
MONTH TO DATE 0.37 0.20
SINCE OCT 1 16.76 16.08
SINCE JAN 1 9.33 8.10
DEGREE DAYS
HEATING
TODAY 5 6
MONTH TO DATE 56 61
SINCE MAR 1 463 727
SINCE JUL 1 2261 2582
COOLING
TODAY 0 0
MONTH TO DATE 2 6
SINCE MAR 1 10 8
SINCE JAN 1 10 8
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 8.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 68 1:00 PM
AVERAGE 84
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 2014
MINIMUM TEMPERATURE (F) 47 37 1999
SUNRISE AND SUNSET
MAY 12 2026...........SUNRISE 6:01 AM PDT SUNSET 8:11 PM PDT
MAY 13 2026...........SUNRISE 6:00 AM PDT SUNSET 8:12 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$