Climatological Report (Monthly)
Issued by NWS
Issued by NWS
365 CXUS56 KSGX 010931 CLMONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 231 AM PDT TUE OCT 01 2024 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2024 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 114 09/06 91 23 98 09/08 09/09 LOWEST 55 09/17 62 -7 58 09/22 09/24 AVG. MAXIMUM 90.9 91.3 -0.4 83.7 AVG. MINIMUM 64.3 63.8 0.5 63.2 MEAN 77.6 77.6 -0.0 73.5 DAYS MAX >= 90 13 17.5 -4.5 7 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 T 0.10 -0.10 0.24 DAILY AVG. T 0.00 -0.00 0.01 DAYS >= .01 0 0.7 -0.7 5 DAYS >= .10 0 0.3 -0.3 1 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 T 09/20 TO 09/20 0.18 09/01 TO 09/02 09/16 TO 09/16 09/20 TO 09/20 STORM TOTAL 0.00 0.13 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 0 1 -1 1 SINCE 7/1 0 0 0 MM COOLING TOTAL 386 378 8 263 SINCE 1/1 1760 1751 9 MM FREEZE DATES RECORD EARLIEST 11/30/2004 LATEST 02/14/2006 EARLIEST 02/24 LATEST 02/20 ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.4 RESULTANT WIND SPEED/DIRECTION 4/250 HIGHEST WIND SPEED/DIRECTION 29/040 DATE 09/08 HIGHEST GUST SPEED/DIRECTION 43/080 DATE 09/08 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.29 NUMBER OF DAYS FAIR 18 NUMBER OF DAYS PC 12 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 55 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 10 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. $$