National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2019-12-22 08:26 UTC
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463
CDUS46 KMTR 220826
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1226 AM PST SUN DEC 22 2019
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 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 60 353 PM 71 1999 55 5 59
MINIMUM 40 1257 AM 21 1998 36 4 40
AVERAGE 50 45 5 50
PRECIPITATION (IN)
YESTERDAY 0.00 0.13
MONTH TO DATE 3.48 1.50
SINCE OCT 1 4.29 2.76
SINCE JAN 1 26.95 15.53
DEGREE DAYS
HEATING
YESTERDAY 15 15
MONTH TO DATE 276 316
SINCE DEC 1 276 316
SINCE JUL 1 876 883
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 346 182
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (80)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 4.4
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
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 100 AM
LOWEST 51 300 PM
AVERAGE 76
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 68 1999
MINIMUM TEMPERATURE (F) 36 19 1998
SUNRISE AND SUNSET
DECEMBER 22 2019......SUNRISE 723 AM PST SUNSET 453 PM PST
DECEMBER 23 2019......SUNRISE 723 AM PST SUNSET 453 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$