540
CDUS46 KMTR 290039
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
539 PM PDT THU MAY 28 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 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 71 4:59 PM 92 2003 75 -4 72
MINIMUM 53 5:30 AM 35 2010 50 3 50
AVERAGE 62 62 0 61
PRECIPITATION (IN)
TODAY 0.23 0.00
MONTH TO DATE 0.64 0.20
SINCE OCT 1 17.03 16.08
SINCE JAN 1 9.60 8.10
DEGREE DAYS
HEATING
TODAY 3 4
MONTH TO DATE 102 128
SINCE MAR 1 509 794
SINCE JUL 1 2307 2649
COOLING
TODAY 0 0
MONTH TO DATE 9 7
SINCE MAR 1 17 9
SINCE JAN 1 17 9
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 9.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 44 4:00 PM
AVERAGE 71
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 87 2002
MINIMUM TEMPERATURE (F) 50 38 2006
SUNRISE AND SUNSET
MAY 28 2026...........SUNRISE 5:49 AM PDT SUNSET 8:24 PM PDT
MAY 29 2026...........SUNRISE 5:49 AM PDT SUNSET 8:25 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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