Climatological Report (Monthly)
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000
CXUS56 KSGX 011734
CLMONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
1033 AM PDT FRI SEP 1 2017

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

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

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             112   08/31/2017
 LOW               54   08/11/2009
HIGHEST           112R  08/31        95      17      106  08/15
LOWEST             61   08/13        63      -2       60  08/27
AVG. MAXIMUM     95.2              93.6     1.6     94.6
AVG. MINIMUM     66.9              64.7     2.2     64.7
MEAN             81.0              79.1     1.9     79.7
DAYS MAX >= 90     22              22.8    -0.8       28
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MAX >= 100     7                                  8
DAYS MAX >= 110     2                                  0
DAYS MIN <= 32      0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.92   1977
 MINIMUM         0.00   2016
                        2010
                        2009
TOTALS           0.02              0.13   -0.11     0.00
DAILY AVG.       0.00              0.00    0.00     0.00
DAYS >= .01         1                MM      MM        0
DAYS >= .10         0                MM      MM        0
DAYS >= .50         0                MM      MM        0
DAYS >= 1.00        0                MM      MM        0
DAYS >= 1.50        0                                  0
DAYS >= 2.00        0                                  0
GREATEST
 24 HR. TOTAL    0.02   08/31 TO 08/31           08/31 TO 08/31
                                                          08/31 TO 08/31
                                                          08/31 TO 08/31
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    08/31(00) TO 08/31(00)
                                                 08/31(00) TO 08/31(00)1
                                                 08/31(00) TO 08/31(00)1

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          0                 0       0        0
COOLING TOTAL     505               439      66      461
 SINCE 1/1       1639              1223     416     1531

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

WIND (MPH)
AVERAGE WIND SPEED              7.0
RESULTANT WIND SPEED/DIRECTION   6/249
HIGHEST WIND SPEED/DIRECTION    29/170    DATE  08/31
HIGHEST GUST SPEED/DIRECTION    39/200    DATE  08/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      0
HAZE                     21

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

$$



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