465
CXUS56 KSGX 011040
CLMONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
240 AM PST SAT FEB 01 2025
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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 90 01/31/2003
LOW 25 01/14/2007
01/14/1962
HIGHEST 85 01/02 68 17 80 01/27
LOWEST 39 01/11 45 -6 34 01/08
01/31
AVG. MAXIMUM 67.5 67.7 -0.2 65.4
AVG. MINIMUM 44.8 44.6 0.2 44.4
MEAN 56.1 56.1 0.0 54.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MAX >= 45 31 31
DAYS MAX >= 120 0 0
DAYS MIN <= 32 0 0.5 -0.5 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 12.47 1969
MINIMUM 0.00 2003
TOTALS 0.69 2.57 -1.88 0.78
DAILY AVG. 0.02 0.08 -0.06 0.03
DAYS >= .01 2 5.1 -3.1 5
DAYS >= .10 1 3.4 -2.4 2
DAYS >= .50 1 1.6 -0.6 0
DAYS >= 1.00 0 0.7 -0.7 0
DAYS >= %-5.2F 0 0
DAYS >= %-5.2F 0 0
GREATEST
24 HR. TOTAL 0.62 01/26 TO 01/26 0.36 01/03 TO 01/03
STORM TOTAL 0.62 0.36
(MM/DD(HH)) MM
DEGREE DAYS
HEATING TOTAL 268 280 -12 306
SINCE 7/1 615 749 -134 MM
COOLING TOTAL 1 5 -4 0
SINCE 1/1 1 5 -4 MM
FREEZE DATES
RECORD
EARLIEST 11/30/2004
LATEST 02/14/2006
EARLIEST 02/24
LATEST 02/20
............................................................
WIND (MPH)
AVERAGE WIND SPEED 7.8
RESULTANT WIND SPEED/DIRECTION 4/030
HIGHEST WIND SPEED/DIRECTION 46/050 DATE 01/09
HIGHEST GUST SPEED/DIRECTION 76/040 DATE 01/09
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.36
NUMBER OF DAYS FAIR 14
NUMBER OF DAYS PC 15
NUMBER OF DAYS CLOUDY 2
AVERAGE RH (PERCENT) 42
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 3 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 0
HAZE 13
- 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