National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-01-18 12:45 UTC
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671
CDUS46 KMTR 181245
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
445 AM PST THU JAN 18 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR JANUARY 17 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 58 1202 PM 71 2014 55 3 53
MINIMUM 46 542 AM 19 2012 37 9 33
AVERAGE 52 46 6 43
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 2.55 7.74
SINCE OCT 1 5.58 16.69
SINCE JAN 1 2.55 7.74
DEGREE DAYS
HEATING
YESTERDAY 13 22
MONTH TO DATE 235 285
SINCE DEC 1 783 830
SINCE JUL 1 1311 1334
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 0 0
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (100)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 80 300 PM
AVERAGE 90
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 70 2014
2009
MINIMUM TEMPERATURE (F) 37 24 2001
SUNRISE AND SUNSET
JANUARY 18 2018.......SUNRISE 723 AM PST SUNSET 516 PM PST
JANUARY 19 2018.......SUNRISE 723 AM PST SUNSET 517 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$