Climatological Report (Daily)
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CDUS46 KSGX 180121
CLIONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
521 PM PST SUN DEC 17 2017


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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 17 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         70    227 PM  85    1998  65      5       56
  MINIMUM         49    331 AM  37    2015  42      7       38
                                      2001
  AVERAGE         60                        54      6       47

PRECIPITATION (IN)
  TODAY            0.00          0.87 2008   0.07  -0.07     0.00
  MONTH TO DATE    0.00                      0.75  -0.75     1.53
  SINCE OCT 1      T                         2.60  -2.60     2.98
  SINCE JAN 1     10.85                     13.47  -2.62     8.57

DEGREE DAYS
 HEATING
  TODAY            5                        11     -6       18
  MONTH TO DATE   37                       181   -144      155
  SINCE DEC 1     37                       181   -144      155
  SINCE JUL 1     81                       403   -322      285

 COOLING
  TODAY            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  15   RESULTANT WIND DIRECTION  NE (40)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED    15.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83          1200 AM
 LOWEST     14           200 PM
 AVERAGE    49

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


THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        81      2003
 MINIMUM TEMPERATURE (F)   42        33      2016


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   650 AM PST   SUNSET   444 PM PST
DECEMBER 18 2017......SUNRISE   651 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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