071
CDUS46 KMTR 130831
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1231 AM PST WED DEC 13 2023
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 2023
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 59 3:27 PM 64 2018 58 1 56
MINIMUM 42 8:11 AM 26 2013 38 4 35
AVERAGE 51 48 3 46
PRECIPITATION (IN)
YESTERDAY 0.00 0.04
MONTH TO DATE 0.65 2.87
SINCE OCT 1 2.36 3.84
SINCE JAN 1 23.57 7.30
DEGREE DAYS
HEATING
YESTERDAY 14 19
MONTH TO DATE 179 210
SINCE DEC 1 179 210
SINCE JUL 1 585 810
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 389 487
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 2.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 10:00 AM
LOWEST 62 4:00 PM
AVERAGE 81
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 61 2004
2018
MINIMUM TEMPERATURE (F) 38 24 2007
2013
SUNRISE AND SUNSET
DECEMBER 13 2023......SUNRISE 7:17 AM PST SUNSET 4:50 PM PST
DECEMBER 14 2023......SUNRISE 7:18 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page