144
CXUS56 KSGX 011359
CLMONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
659 AM PDT FRI AUG 01 2025
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...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF JULY 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
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TEMPERATURE (F)
RECORD
HIGH 117 07/06/2018
LOW 56 07/09/2010
07/22/2001
07/12/2001
HIGHEST 98 07/10 95 3 102 07/20
LOWEST 58 07/02 62 -4 62 07/02
07/26
AVG. MAXIMUM 89.9 93.8 -3.9 95.8
AVG. MINIMUM 61.8 64.7 -2.9 67.1
MEAN 75.9 79.2 -3.3 81.5
DAYS MAX >= 90 17 22.7 -5.7 30
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 0.60 2015
MINIMUM 0.00 2025
TOTALS 0.00R 0.05 -0.05 0.00
DAILY AVG. 0.00 0.00 -0.00 0.00
DAYS >= .01 0 0.6 -0.6 0
DAYS >= .10 0 0.1 -0.1 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 0.00 06/30 TO 06/30 0.00 06/30 TO 06/30
STORM TOTAL 0.00 0.00
(MM/DD(HH)) MM
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 345 442 -97 520
SINCE 1/1 883 906 -23 MM
FREEZE DATES
RECORD
EARLIEST 11/30/2004
LATEST 02/14/2006
EARLIEST 02/24
LATEST 02/20
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WIND (MPH)
AVERAGE WIND SPEED 7.0
RESULTANT WIND SPEED/DIRECTION 6/240
HIGHEST WIND SPEED/DIRECTION 20/270 DATE 07/05
20/240 07/25
20/250 07/26
HIGHEST GUST SPEED/DIRECTION 31/270 DATE 07/24
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.19
NUMBER OF DAYS FAIR 24
NUMBER OF DAYS PC 7
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 57
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 0 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 23
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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