National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2014-12-20 08:45 UTC
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874
CDUS46 KMTR 200845
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1245 AM PST SAT DEC 20 2014
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2014...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 56 1113 AM 78 1999 55 1 63
MINIMUM 51 733 PM 21 2006 36 15 30
AVERAGE 54 45 9 47
PRECIPITATION (IN)
YESTERDAY 0.85 0.00
MONTH TO DATE 10.14 0.47
SINCE JUL 1 12.77 2.20
SINCE JAN 1 21.04 4.17
DEGREE DAYS
HEATING
YESTERDAY 11 18
MONTH TO DATE 205 442
SINCE DEC 1 205 442
SINCE JUL 1 678 1121
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 267 303
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 83 100 AM
AVERAGE 92
..........................................................
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 2014......SUNRISE 722 AM PST SUNSET 452 PM PST
DECEMBER 21 2014......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.
$$