National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2016-12-21 08:45 UTC
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237
CDUS46 KMTR 210845
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1245 AM PST WED DEC 21 2016
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 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 59 220 PM 67 1999 55 4 52
MINIMUM 32 719 AM 25 2008 36 -4 30
AVERAGE 46 45 1 41
PRECIPITATION (IN)
YESTERDAY 0.00 0.78
MONTH TO DATE 3.54 1.86
SINCE OCT 1 8.29 3.27
SINCE JAN 1 22.96 7.37
DEGREE DAYS
HEATING
YESTERDAY 19 24
MONTH TO DATE 328 335
SINCE DEC 1 328 335
SINCE JUL 1 832 876
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 186 378
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 500 AM
LOWEST 43 100 PM
AVERAGE 66
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 71 1999
MINIMUM TEMPERATURE (F) 36 21 1998
SUNRISE AND SUNSET
DECEMBER 21 2016......SUNRISE 722 AM PST SUNSET 453 PM PST
DECEMBER 22 2016......SUNRISE 723 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.
$$