539
CXUS56 KSGX 031415
CLMONT

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
715 AM PDT FRI JUL 03 2026

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF JUNE 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            112   06/20/2016
 LOW              46   06/05/1999
HIGHEST           99   06/12         88      11      100  06/15
LOWEST            56   06/21         57      -1       57  06/08
AVG. MAXIMUM    86.1               86.4    -0.3     87.8
AVG. MINIMUM    60.8               60.0     0.8     60.9
MEAN            73.4               73.2     0.3     74.4
DAYS MAX >= 90     8               11.1    -3.1       10
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MAX >= 45    30                                  30
DAYS MAX >= 120    0                                   0
DAYS MIN <= 32     0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        0.57   1957
 MINIMUM        0.00   2014
TOTALS             T               0.02   -0.02     0.10
DAILY AVG.         T               0.00   -0.00     0.00
DAYS >= .01        0                0.3    -0.3        1
DAYS >= .10        0                0.0     0.0        1
DAYS >= .50        0                0.0     0.0        0
DAYS >= 1.00       0                0.0     0.0        0
DAYS >= %-5.2F     0                                   0
DAYS >= %-5.2F     0                                   0
GREATEST
 24 HR. TOTAL      T   06/30 TO 06/30               0.10  06/03 TO 06/03
 STORM TOTAL    0.00                                0.10
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL      0                  4      -4        0
 SINCE 7/1       638               1288    -650       MM
COOLING TOTAL    260                250      10      288
 SINCE 1/1       690                464     226       MM

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

WIND (MPH)
AVERAGE WIND SPEED              7.3
RESULTANT WIND SPEED/DIRECTION   6/240
HIGHEST WIND SPEED/DIRECTION    20/260    DATE  06/12
                                20/280          06/14
                                20/260          06/26
HIGHEST GUST SPEED/DIRECTION    28/210    DATE  06/07
                                28/260          06/11
                                28/270          06/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.29
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
HAZE                     20

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

$$