National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2019-12-23 08:45 UTC
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711
CDUS46 KMTR 230845
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1245 AM PST MON DEC 23 2019
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 22 2019...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2019
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 56 252 PM 68 1999 55 1 55
MINIMUM 37 1159 PM 19 1998 36 1 36
AVERAGE 47 45 2 46
PRECIPITATION (IN)
YESTERDAY 0.46 0.00
MONTH TO DATE 3.94 1.50
SINCE OCT 1 4.75 2.76
SINCE JAN 1 27.41 15.53
DEGREE DAYS
HEATING
YESTERDAY 18 19
MONTH TO DATE 294 335
SINCE DEC 1 294 335
SINCE JUL 1 894 902
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 346 182
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 6.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1100 AM
LOWEST 59 300 AM
AVERAGE 80
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 66 2004
MINIMUM TEMPERATURE (F) 36 20 2011
SUNRISE AND SUNSET
DECEMBER 23 2019......SUNRISE 723 AM PST SUNSET 453 PM PST
DECEMBER 24 2019......SUNRISE 723 AM PST SUNSET 454 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$