National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-05-18 08:29 UTC
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297
CDUS46 KMTR 180830
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT FRI MAY 18 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 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 71 400 PM 95 2009 73 -2 74
MINIMUM 41R 434 AM 41 1999 46 -5 44
AVERAGE 56 59 -3 59
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.00 T
SINCE OCT 1 15.79 36.85
SINCE JAN 1 12.76 27.90
DEGREE DAYS
HEATING
YESTERDAY 9 6
MONTH TO DATE 86 75
SINCE MAR 1 788 554
SINCE JUL 1 2808 2437
COOLING
YESTERDAY 0 0
MONTH TO DATE 2 21
SINCE MAR 1 2 23
SINCE JAN 1 2 23
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 8.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 53 100 PM
AVERAGE 77
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 83 2017
MINIMUM TEMPERATURE (F) 46 39 2013
SUNRISE AND SUNSET
MAY 18 2018...........SUNRISE 556 AM PDT SUNSET 816 PM PDT
MAY 19 2018...........SUNRISE 555 AM PDT SUNSET 817 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$