National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2013-12-20 08:38 UTC
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000
CDUS46 KMTR 200838
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1238 AM PST FRI DEC 20 2013
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2013...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2013
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 63 204 PM 78 1999 55 8 52
MINIMUM 30 543 AM 21 2006 36 -6 25
AVERAGE 47 45 2 39
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.47 1.85
SINCE JUL 1 2.20 5.46
SINCE JAN 1 4.17 19.23
DEGREE DAYS
HEATING
YESTERDAY 18 26
MONTH TO DATE 442 311
SINCE DEC 1 442 311
SINCE JUL 1 1121 883
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 303 204
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 300 AM
LOWEST 20 300 PM
AVERAGE 60
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 67 1999
MINIMUM TEMPERATURE (F) 36 25 2008
SUNRISE AND SUNSET
DECEMBER 20 2013......SUNRISE 722 AM PST SUNSET 452 PM PST
DECEMBER 21 2013......SUNRISE 722 AM PST SUNSET 453 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$