Climatological Report (Monthly)
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CXUS56 KSGX 012255
CLMONT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
355 PM PDT WED NOV 1 2017

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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             107   10/01/2012
 LOW               43   10/29/2009
HIGHEST           104   10/23        83      21       96  10/20
LOWEST             50   10/15        56      -6       53  10/31
AVG. MAXIMUM     87.4              80.6     6.8     82.2
AVG. MINIMUM     58.4              55.2     3.2     57.1
MEAN             72.9              67.9     5.0     69.6
DAYS MAX >= 90     15               6.1     8.9        8
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MAX >= 100     2                                  0
DAYS MAX >= 110     0                                  0
DAYS MIN <= 32      0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.20   1957
 MINIMUM         0.00   2006
TOTALS              T              0.64   -0.64     0.62
DAILY AVG.          T              0.02   -0.02     0.02
DAYS >= .01         0                MM      MM        4
DAYS >= .10         0                MM      MM        2
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       T   10/30 TO 10/30           10/23 TO 10/24
                                                          10/31 TO 10/31
                                                          10/31 TO 10/31
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    10/24(00) TO 10/24(00)
                                                 10/31(00) TO 10/31(00)1
                                                 10/31(00) TO 10/31(00)1

DEGREE_DAYS
HEATING TOTAL       1                42     -41        6
 SINCE 7/1          2                45     -43        7
COOLING TOTAL     253               132     121      158
 SINCE 1/1       2231              1683     548     2020

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

WIND (MPH)
AVERAGE WIND SPEED              5.8
RESULTANT WIND SPEED/DIRECTION   2/271
HIGHEST WIND SPEED/DIRECTION    31/030    DATE  10/09
HIGHEST GUST SPEED/DIRECTION    41/070    DATE  10/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     44

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                       8     FOG W/VIS <= 1/4 MILE      1
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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