National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-12-11 08:38 UTC
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256
CDUS46 KMTR 110839
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1238 AM PST TUE DEC 11 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 10 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 57 230 PM 66 2017 56 1 66
MINIMUM 34 1103 PM 21 2013 36 -2 34
AVERAGE 46 46 0 50
PRECIPITATION (IN)
YESTERDAY 0.01 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 19 15
MONTH TO DATE 164 155
SINCE DEC 1 164 155
SINCE JUL 1 731 683
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 8 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 2.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 800 PM
LOWEST 72 200 PM
AVERAGE 86
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 66 2017
MINIMUM TEMPERATURE (F) 36 25 2013
SUNRISE AND SUNSET
DECEMBER 11 2018......SUNRISE 716 AM PST SUNSET 449 PM PST
DECEMBER 12 2018......SUNRISE 716 AM PST SUNSET 449 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$