Climatological Report (Monthly) Issued by NWS
000
CXUS56 KSGX 011025
CLMONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
325 AM PDT SUN OCT 01 2023
...................................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 118 09/05/2020
LOW 51 09/27/2013
HIGHEST 98 09/08 91 7 109 09/04
09/09
LOWEST 58 09/22 62 -4 60 09/20
09/24
09/21
09/22
AVG. MAXIMUM 83.7 91.3 -7.6 93.8
AVG. MINIMUM 63.2 63.8 -0.6 68.9
MEAN 73.5 77.6 -4.1 81.3
DAYS MAX >= 90 7 17.5 -10.5 18
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 3.54 1963
MINIMUM 0.00 2020
TOTALS 0.24 0.10 0.14 0.27
DAILY AVG. 0.01 0.00 0.01 0.01
DAYS >= .01 5 0.7 4.3 3
DAYS >= .10 1 0.3 0.7 2
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 0.18 09/01 TO 09/02 0.14 09/11 TO 09/11
STORM TOTAL 0.13 0.14
(MM/DD(HH)) MM
DEGREE DAYS
HEATING TOTAL 1 1 0 0
SINCE 7/1 1 0 1 MM
COOLING TOTAL 263 378 -115 498
SINCE 1/1 1451 1751 -300 MM
FREEZE DATES
RECORD
EARLIEST 11/30/2004
LATEST 02/14/2006
EARLIEST 02/24
LATEST 02/20
................................................................
WIND (MPH)
AVERAGE WIND SPEED 6.1
RESULTANT WIND SPEED/DIRECTION 5/250
HIGHEST WIND SPEED/DIRECTION 25/230 DATE 09/30
HIGHEST GUST SPEED/DIRECTION 31/240 DATE 09/30
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.46
NUMBER OF DAYS FAIR 10
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 64
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 6 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 1
HAZE 18
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$