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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page