058
CDUS46 KMTR 210833
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1233 AM PST THU DEC 21 2023
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 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 12:57 AM 67 1999 57 2 55
MINIMUM 53 9:33 AM 25 2008 37 16 36
AVERAGE 56 47 9 46
PRECIPITATION (IN)
YESTERDAY 0.53 0.00
MONTH TO DATE 3.02 2.87
SINCE OCT 1 4.73 3.84
SINCE JAN 1 25.94 7.30
DEGREE DAYS
HEATING
YESTERDAY 9 19
MONTH TO DATE 272 381
SINCE DEC 1 272 381
SINCE JUL 1 678 981
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 389 487
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 10:00 AM
LOWEST 74 6:00 PM
AVERAGE 84
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THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 71 1999
MINIMUM TEMPERATURE (F) 37 21 1998
SUNRISE AND SUNSET
DECEMBER 21 2023......SUNRISE 7:22 AM PST SUNSET 4:52 PM PST
DECEMBER 22 2023......SUNRISE 7:23 AM PST SUNSET 4:53 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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