244
CDUS46 KMTR 310835
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST SUN DEC 31 2023
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 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 61 3:45 PM 63 2013 56 5 60
2017
MINIMUM 48 11:59 PM 26 2015 38 10 52
AVERAGE 55 47 8 56
PRECIPITATION (IN)
YESTERDAY 0.12 0.68
MONTH TO DATE 4.33 5.83
SINCE OCT 1 6.04 6.80
SINCE JAN 1 27.25 10.26
DEGREE DAYS
HEATING
YESTERDAY 10 9
MONTH TO DATE 399 537
SINCE DEC 1 399 537
SINCE JUL 1 805 1137
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 389 487
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (170)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 12:00 AM
LOWEST 72 3:00 PM
AVERAGE 85
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THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 64 2020
MINIMUM TEMPERATURE (F) 38 24 2015
SUNRISE AND SUNSET
DECEMBER 31 2023......SUNRISE 7:26 AM PST SUNSET 4:59 PM PST
JANUARY 1 2024.......SUNRISE 7:26 AM PST SUNSET 5:00 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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