413
CDUS46 KMTR 210829
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1229 AM PST SAT DEC 21 2024
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 2024
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 50 3:20 PM 67 1999 57 -7 59
MINIMUM 41 6:41 AM 25 2008 37 4 53
AVERAGE 46 47 -1 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.53
MONTH TO DATE 1.13 3.02
SINCE OCT 1 5.39 4.73
SINCE JAN 1 19.23 25.94
DEGREE DAYS
HEATING
YESTERDAY 19 9
MONTH TO DATE 233 272
SINCE DEC 1 233 272
SINCE JUL 1 773 678
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 444 389
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 11.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 AM
LOWEST 83 4:00 PM
AVERAGE 90
......................................................
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 2024......SUNRISE 7:22 AM PST SUNSET 4:53 PM PST
DECEMBER 22 2024......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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