National Weather Service Text Product
AFOS product CLIAPC
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIAPC
Product Timestamp: 2018-12-22 08:27 UTC
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732
CDUS46 KMTR 220834
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST SAT DEC 22 2018
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 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 59 358 PM 71 1999 55 4 61
MINIMUM 40 1157 PM 21 1998 36 4 30
AVERAGE 50 45 5 46
PRECIPITATION (IN)
YESTERDAY 0.13 0.00
MONTH TO DATE 1.50 0.06
SINCE OCT 1 2.76 3.03
SINCE JAN 1 15.53 31.21
DEGREE DAYS
HEATING
YESTERDAY 15 19
MONTH TO DATE 316 354
SINCE DEC 1 316 354
SINCE JUL 1 883 882
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 182 530
..................................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 2.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 700 PM
LOWEST 75 400 PM
AVERAGE 88
..........................................................
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 2018......SUNRISE 723 AM PST SUNSET 453 PM PST
DECEMBER 23 2018......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.
$$