Climatological Report (Daily)
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CDUS46 KSGX 161231
CLIONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
430 AM PST SAT DEC 16 2017


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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 15 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         81R   240 PM  81    2013  65     16       67
  MINIMUM         48    552 AM  32    2015  42      6       51
  AVERAGE         65                        54     11       59

PRECIPITATION (IN)
  YESTERDAY        0.00          1.70 2008   0.06  -0.06     0.30
  MONTH TO DATE    0.00                      0.63  -0.63     0.31
  SINCE OCT 1      T                         2.48  -2.48     1.76
  SINCE JAN 1     10.85                     13.35  -2.50     7.35

DEGREE DAYS
 HEATING
  YESTERDAY        0                        11    -11        6
  MONTH TO DATE   24                       159   -135      124
  SINCE DEC 1     24                       159   -135      124
  SINCE JUL 1     68                       381   -313      254

 COOLING
  YESTERDAY        0                         0      0        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   1   RESULTANT WIND DIRECTION   E (90)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     2.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    28          1000 PM
 LOWEST      5          1100 AM
 AVERAGE    17

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


THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        84      2013
 MINIMUM TEMPERATURE (F)   42        33      2001


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   649 AM PST   SUNSET   443 PM PST
DECEMBER 17 2017......SUNRISE   650 AM PST   SUNSET   444 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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