National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2019-12-31 08:26 UTC
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135
CDUS46 KMTR 310826
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1226 AM PST TUE DEC 31 2019
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 30 2019...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2019
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 58 328 PM 63 2017 54 4 58
2013
MINIMUM 35 1153 PM 26 2015 36 -1 30
AVERAGE 47 45 2 44
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 4.93 1.94
SINCE OCT 1 5.74 3.20
SINCE JAN 1 28.40 15.97
DEGREE DAYS
HEATING
YESTERDAY 18 21
MONTH TO DATE 456 467
SINCE DEC 1 456 467
SINCE JUL 1 1056 1034
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 346 182
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (140)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 3.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 700 AM
LOWEST 67 300 PM
AVERAGE 84
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 54 62 2011
MINIMUM TEMPERATURE (F) 36 24 2015
SUNRISE AND SUNSET
DECEMBER 31 2019......SUNRISE 726 AM PST SUNSET 459 PM PST
JANUARY 1 2020.......SUNRISE 726 AM PST SUNSET 500 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$