National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2025-11-27 08:28 UTC
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984
CDUS46 KMTR 270828
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1228 AM PST THU NOV 27 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR NOVEMBER 26 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 54 3:37 PM 72 2002 61 -7 60
MINIMUM 37 7:23 AM 26 2010 39 -2 43
AVERAGE 46 50 -4 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.05
MONTH TO DATE 2.15 4.25
SINCE OCT 1 3.46 4.26
SINCE JAN 1 11.78 18.10
DEGREE DAYS
HEATING
YESTERDAY 19 13
MONTH TO DATE 223 314
SINCE SEP 1 354 455
SINCE JUL 1 399 468
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE SEP 1 100 143
SINCE JAN 1 211 444
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 12.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 AM
LOWEST 77 1:00 PM
AVERAGE 87
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 68 2007
2014
MINIMUM TEMPERATURE (F) 39 24 2005
SUNRISE AND SUNSET
NOVEMBER 27 2025......SUNRISE 7:03 AM PST SUNSET 4:50 PM PST
NOVEMBER 28 2025......SUNRISE 7:04 AM PST SUNSET 4:50 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$