National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2016-12-20 08:45 UTC
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421
CDUS46 KMTR 200845
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1245 AM PST TUE DEC 20 2016
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 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 55 324 PM 78 1999 55 0 57
MINIMUM 28 636 AM 21 2006 36 -8 32
AVERAGE 42 45 -3 45
PRECIPITATION (IN)
YESTERDAY 0.00 0.05
MONTH TO DATE 3.54 1.08
SINCE OCT 1 8.29 2.49
SINCE JAN 1 22.96 6.59
DEGREE DAYS
HEATING
YESTERDAY 23 20
MONTH TO DATE 309 311
SINCE DEC 1 309 311
SINCE JUL 1 813 852
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 186 378
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.6
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 1100 PM
LOWEST 50 1200 PM
AVERAGE 70
..........................................................
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 2016......SUNRISE 722 AM PST SUNSET 452 PM PST
DECEMBER 21 2016......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.
$$