Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS56 KSGX 011052 CLMONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 352 AM PDT FRI SEP 01 2023 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 112 08/31/2017 LOW 54 08/11/2009 HIGHEST 105 08/28 95 10 108 08/31 08/29 LOWEST 62 08/03 63 -1 65 08/21 08/04 08/21 08/22 08/29 AVG. MAXIMUM 94.4 94.9 -0.5 96.4 AVG. MINIMUM 66.5 65.2 1.3 68.9 MEAN 80.5 80.1 0.4 82.7 DAYS MAX >= 90 24 23.8 0.2 29 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 1.92 1977 MINIMUM 0.00 2019 TOTALS 1.92R 0.03 1.89 T DAILY AVG. 0.06 0.00 0.06 T DAYS >= .01 2 0.3 1.7 0 DAYS >= .10 2 0.1 1.9 0 DAYS >= .50 1 0.0 1.0 0 DAYS >= 1.00 1 0.0 1.0 0 DAYS >= %-5.2F 0 0 DAYS >= %-5.2F 0 0 GREATEST 24 HR. TOTAL 1.85 08/20 TO 08/21 T 08/01 TO 08/01 STORM TOTAL 1.69 0.00 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 485 467 18 554 SINCE 1/1 1188 1373 -185 MM FREEZE DATES RECORD EARLIEST 11/30/2004 LATEST 02/14/2006 EARLIEST 02/24 LATEST 02/20 ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.0 RESULTANT WIND SPEED/DIRECTION 5/250 HIGHEST WIND SPEED/DIRECTION 21/270 DATE 08/06 21/260 08/17 HIGHEST GUST SPEED/DIRECTION 26/240 DATE 08/17 26/240 08/18 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.26 NUMBER OF DAYS FAIR 21 NUMBER OF DAYS PC 9 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 53 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 2 LIGHT RAIN 6 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 7 FOG W/VIS <= 1/4 MILE 0 HAZE 11 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$