National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-12-17 08:39 UTC
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081
CDUS46 KMTR 170840
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1239 AM PST MON DEC 17 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 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 62 1233 PM 69 2011 55 7 65
MINIMUM 48 158 AM 28 2015 36 12 30
2006
AVERAGE 55 46 9 48
PRECIPITATION (IN)
YESTERDAY 0.57 0.00
MONTH TO DATE 1.35 0.01
SINCE OCT 1 2.61 2.98
SINCE JAN 1 15.38 31.16
DEGREE DAYS
HEATING
YESTERDAY 10 17
MONTH TO DATE 241 265
SINCE DEC 1 241 265
SINCE JUL 1 808 793
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 182 530
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SE (130)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 4.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 300 AM
LOWEST 69 1100 AM
AVERAGE 85
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 66 2017
2000
MINIMUM TEMPERATURE (F) 36 24 2008
SUNRISE AND SUNSET
DECEMBER 17 2018......SUNRISE 720 AM PST SUNSET 451 PM PST
DECEMBER 18 2018......SUNRISE 720 AM PST SUNSET 451 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$