National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-12-12 08:26 UTC
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496
CDUS46 KMTR 120827
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1226 AM PST WED DEC 12 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 2018...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 57 355 PM 66 2017 56 1 66
MINIMUM 36 840 AM 25 2013 36 0 34
AVERAGE 47 46 1 50
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.64 0.01
SINCE OCT 1 1.90 2.98
SINCE JAN 1 14.67 31.16
DEGREE DAYS
HEATING
YESTERDAY 18 15
MONTH TO DATE 182 170
SINCE DEC 1 182 170
SINCE JUL 1 749 698
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 182 530
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 2.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 300 AM
LOWEST 57 300 PM
AVERAGE 79
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 63 2017
MINIMUM TEMPERATURE (F) 36 26 2013
SUNRISE AND SUNSET
DECEMBER 12 2018......SUNRISE 716 AM PST SUNSET 449 PM PST
DECEMBER 13 2018......SUNRISE 717 AM PST SUNSET 450 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$