194
CDUS46 KMTR 210828
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1228 AM PST WED JAN 21 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR JANUARY 20 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 50 3:00 PM 71 2014 57 -7 66
MINIMUM 41 8:51 AM 25 2007 38 3 34
AVERAGE 46 48 -2 50
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 1.91 0.28
SINCE OCT 1 9.34 8.26
SINCE JAN 1 1.91 0.28
DEGREE DAYS
HEATING
YESTERDAY 19 15
MONTH TO DATE 304 316
SINCE DEC 1 809 701
SINCE JUL 1 1284 1241
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 0 0
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 10.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 86 3:00 PM
AVERAGE 93
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 68 2007
2022
MINIMUM TEMPERATURE (F) 38 26 2008
SUNRISE AND SUNSET
JANUARY 21 2026.......SUNRISE 7:22 AM PST SUNSET 5:20 PM PST
JANUARY 22 2026.......SUNRISE 7:21 AM PST SUNSET 5:21 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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