Climatological Report (Monthly)
Issued by NWS
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. $$