Climatological Report (Monthly)
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CXUS56 KSGX 012001
CLMONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
1201 PM PST THU JAN 1 2015

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              86   12/24/2005
 LOW               28   12/23/1998
                        12/22/1998
HIGHEST            81   12/23        69      12       84  12/17
                                                          12/16
LOWEST             32   12/31        44     -12       31  12/10
AVG. MAXIMUM     65.7              65.6     0.1     69.8
AVG. MINIMUM     47.7              42.7     5.0     42.9
MEAN             56.7              54.1     2.6     56.3
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MAX >= 100     0                                  0
DAYS MAX >= 110     0                                  0
DAYS MIN <= 32      1               0.5     0.5        1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.73   2010
 MINIMUM         0.00   1963
                        1962
TOTALS           4.41              2.32    2.09     0.36
DAILY AVG.       0.14              0.07    0.07     0.01
DAYS >= .01         7                MM      MM        2
DAYS >= .10         4                MM      MM        2
DAYS >= .50         3                MM      MM        0
DAYS >= 1.00        2                MM      MM        0
DAYS >= 1.50        1                                  0
DAYS >= 2.00        0                                  0
GREATEST
 24 HR. TOTAL    1.57   12/11 TO 12/12           12/18 TO 12/19
                                                          12/31 TO 12/31
                                                          12/31 TO 12/31
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/19(00) TO 12/19(00)
                                                 12/31(00) TO 12/31(00)1
                                                 12/31(00) TO 12/31(00)1

SNOWFALL (INCHES)
TOTALS            0.0
SINCE 7/1         0.0

DEGREE_DAYS
HEATING TOTAL     251               338     -87      264
 SINCE 7/1        321               560    -239      422
COOLING TOTAL       2                 2       0        4
 SINCE 1/1       2399              1707     692     2001

FREEZE DATES
RECORD
 EARLIEST     11/30/2004
 LATEST       02/14/2006
EARLIEST      12/10             MM
LATEST                          MM
..................................................

WIND (MPH)
AVERAGE WIND SPEED              4.2
RESULTANT WIND SPEED/DIRECTION   1/030
HIGHEST WIND SPEED/DIRECTION    39/020    DATE  12/31
HIGHEST GUST SPEED/DIRECTION    53/030    DATE  12/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      2
HAZE                      8

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

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