490
CDUS46 KMTR 200834
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
134 AM PDT WED MAY 20 2026
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 19 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 89R 3:17 PM 88 2017 74 15 83
2022
MINIMUM 44 6:10 AM 40 2003 48 -4 48
2011
AVERAGE 67 61 6 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.37 0.20
SINCE OCT 1 16.76 16.08
SINCE JAN 1 9.33 8.10
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 72 92
SINCE MAR 1 479 758
SINCE JUL 1 2277 2613
COOLING
YESTERDAY 2 1
MONTH TO DATE 7 7
SINCE MAR 1 15 9
SINCE JAN 1 15 9
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 6.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 6:00 AM
LOWEST 12 3:00 PM
AVERAGE 48
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 91 2013
MINIMUM TEMPERATURE (F) 49 38 2021
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 5:54 AM PDT SUNSET 8:18 PM PDT
MAY 21 2026...........SUNRISE 5:53 AM PDT SUNSET 8:19 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page