National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2016-12-17 08:27 UTC
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211
CDUS46 KMTR 170827
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST SAT DEC 17 2016
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 2016...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2016
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 56 244 PM 69 2011 55 1 55
MINIMUM 38 1152 PM 28 2015 36 2 28
2006
AVERAGE 47 46 1 42
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 3.54 0.64
SINCE OCT 1 8.29 2.05
SINCE JAN 1 22.96 6.15
DEGREE DAYS
HEATING
YESTERDAY 18 23
MONTH TO DATE 237 258
SINCE DEC 1 237 258
SINCE JUL 1 741 799
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 186 378
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 13.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 1200 AM
LOWEST 35 300 PM
AVERAGE 59
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 66 2000
MINIMUM TEMPERATURE (F) 36 24 2008
SUNRISE AND SUNSET
DECEMBER 17 2016......SUNRISE 720 AM PST SUNSET 451 PM PST
DECEMBER 18 2016......SUNRISE 721 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.
$$