857
CXUS56 KSGX 021034
CLMONT

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
234 AM PST MON NOV 02 2026

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...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026

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              41   10/31/2019
HIGHEST          104   10/05         83      21       96  10/28
LOWEST            52   10/14         56      -4       52  10/16
AVG. MAXIMUM    84.5               82.6     1.9     81.4
AVG. MINIMUM    63.2               57.1     6.1     57.1
MEAN            73.9               69.8     4.1     69.2
DAYS MAX >= 90    10                8.0     2.0        5
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MAX >= 45    31                                  31
DAYS MAX >= 120    0                                   0
DAYS MIN <= 32     0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.20   1957
 MINIMUM        0.00   2019
TOTALS          2.22               0.41    1.81     1.08
DAILY AVG.      0.07               0.01    0.06     0.03
DAYS >= .01        7                2.2     4.8        1
DAYS >= .10        5                0.9     4.1        1
DAYS >= .50        2                0.3     1.7        1
DAYS >= 1.00       0                0.1    -0.1        1
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL   0.91   10/21 TO 10/22               1.08  10/14 TO 10/14
 STORM TOTAL    0.87                                1.08
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL     13                 26     -13       14
 SINCE 7/1        13                 24     -11       MM
COOLING TOTAL    294                176     118      152
 SINCE 1/1      2515               1927     588       MM

FREEZE DATES
RECORD
 EARLIEST     11/30/2004
 LATEST       02/14/2006
EARLIEST                        02/24
LATEST                          02/20
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
RESULTANT WIND SPEED/DIRECTION   1/260
HIGHEST WIND SPEED/DIRECTION    36/040    DATE  10/16
HIGHEST GUST SPEED/DIRECTION    51/040    DATE  10/15
                                51/030          10/16

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.36
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     50

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$