National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-12-28 08:37 UTC
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981
CDUS46 KMTR 280837
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1237 AM PST FRI DEC 28 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 27 2018...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 61 211 PM 67 1999 54 7 59
MINIMUM 34 800 AM 25 2015 36 -2 30
AVERAGE 48 45 3 45
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 1.94 0.06
SINCE OCT 1 3.20 3.03
SINCE JAN 1 15.97 31.21
DEGREE DAYS
HEATING
YESTERDAY 17 20
MONTH TO DATE 411 475
SINCE DEC 1 411 475
SINCE JUL 1 978 1003
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 182 530
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (0)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 8.1
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 100 200 AM
LOWEST 25 300 PM
AVERAGE 63
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 54 64 1999
MINIMUM TEMPERATURE (F) 36 24 2013
SUNRISE AND SUNSET
DECEMBER 28 2018......SUNRISE 725 AM PST SUNSET 457 PM PST
DECEMBER 29 2018......SUNRISE 725 AM PST SUNSET 457 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$