964
CXUS56 KSGX 010948
CLMONT

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
248 AM PDT TUE JUL 01 2025

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF JUNE 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025

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          100   06/15         88      12      102  06/22
LOWEST            57   06/08         57       0       56  06/03
                                                          06/04
                                                          06/14
AVG. MAXIMUM    87.8               86.4     1.4     87.2
AVG. MINIMUM    60.9               60.0     0.9     61.1
MEAN            74.4               73.2     1.2     74.1
DAYS MAX >= 90    10               11.1    -1.1       12
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          0.10               0.02    0.08        T
DAILY AVG.      0.00               0.00   -0.00        T
DAYS >= .01        1                0.3     0.7        0
DAYS >= .10        1                0.0     1.0        0
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   0.10   06/03 TO 06/03                  T  06/18 TO 06/18
                                                          06/09 TO 06/09
                                                          06/18 TO 06/18
 STORM TOTAL    0.10                                0.00
 (MM/DD(HH))            MM


DEGREE DAYS
HEATING TOTAL      0                  4      -4        2
 SINCE 7/1      1134               1288    -154       MM
COOLING TOTAL    288                250      38      285
 SINCE 1/1       538                464      74       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              6.9
RESULTANT WIND SPEED/DIRECTION   6/240
HIGHEST WIND SPEED/DIRECTION    20/280    DATE  06/29
HIGHEST GUST SPEED/DIRECTION    31/270    DATE  06/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.32
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     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                      17     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.

$$