Climatological Report (Daily)
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CDUS46 KSGX 121231
CLIONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
430 AM PST TUE DEC 12 2017


...................................

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 11 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         82    304 PM  83    2004  66     16       63
  MINIMUM         50    711 AM  34    2011  43      7       56
                                      1998
  AVERAGE         66                        54     12       60

PRECIPITATION (IN)
  YESTERDAY        0.00          0.40 2009   0.04  -0.04     0.01
  MONTH TO DATE    0.00                      0.44  -0.44     0.01
  SINCE OCT 1      T                         2.29  -2.29     1.46
  SINCE JAN 1     10.85                     13.16  -2.31     7.05

DEGREE DAYS
 HEATING
  YESTERDAY        0                        11    -11        5
  MONTH TO DATE   19                       115    -96      104
  SINCE DEC 1     19                       115    -96      104
  SINCE JUL 1     63                       337   -274      234

 COOLING
  YESTERDAY        1                         0      1        0
  MONTH TO DATE   10                         0     10        0
  SINCE DEC 1     10                         0     10        0
  SINCE JAN 1   2294                      1705    589     2102
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION  NW (320)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     3.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    23          1200 AM
 LOWEST      5          1200 PM
 AVERAGE    14

..........................................................


THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        84      2010
 MINIMUM TEMPERATURE (F)   42        36      2007


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   647 AM PST   SUNSET   442 PM PST
DECEMBER 13 2017......SUNRISE   647 AM PST   SUNSET   442 PM PST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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