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CDUS46 KMTR 200831
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1231 AM PST WED DEC 20 2023
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 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 62 2:15 PM 78 1999 57 5 44
MINIMUM 54 7:19 PM 21 2006 37 17 35
AVERAGE 58 47 11 40
PRECIPITATION (IN)
YESTERDAY 0.37 0.00
MONTH TO DATE 2.49 2.87
SINCE OCT 1 4.20 3.84
SINCE JAN 1 25.41 7.30
DEGREE DAYS
HEATING
YESTERDAY 7 25
MONTH TO DATE 263 362
SINCE DEC 1 263 362
SINCE JUL 1 669 962
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 389 487
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 3:00 AM
LOWEST 75 10:00 PM
AVERAGE 86
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 67 1999
MINIMUM TEMPERATURE (F) 37 25 2008
SUNRISE AND SUNSET
DECEMBER 20 2023......SUNRISE 7:21 AM PST SUNSET 4:52 PM PST
DECEMBER 21 2023......SUNRISE 7:22 AM PST SUNSET 4:52 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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