National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-05-17 08:48 UTC
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503
CDUS46 KMTR 170848
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
148 AM PDT THU MAY 17 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 16 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 68 1232 PM 95 2009 72 -4 68
MINIMUM 46 1131 PM 37 1999 46 0 49
AVERAGE 57 59 -2 59
PRECIPITATION (IN)
YESTERDAY 0.00 T
MONTH TO DATE 0.00 T
SINCE OCT 1 15.79 36.85
SINCE JAN 1 12.76 27.90
DEGREE DAYS
HEATING
YESTERDAY 8 6
MONTH TO DATE 77 69
SINCE MAR 1 779 548
SINCE JUL 1 2799 2431
COOLING
YESTERDAY 0 0
MONTH TO DATE 2 21
SINCE MAR 1 2 23
SINCE JAN 1 2 23
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 11.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1200 AM
LOWEST 52 1000 AM
AVERAGE 71
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 95 2009
MINIMUM TEMPERATURE (F) 46 41 1999
SUNRISE AND SUNSET
MAY 17 2018...........SUNRISE 556 AM PDT SUNSET 815 PM PDT
MAY 18 2018...........SUNRISE 556 AM PDT SUNSET 816 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$