Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS56 KSGX 010933 CLMONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 233 AM PDT THU JUN 01 2023 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF MAY 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 103 05/13/2013 05/12/2013 05/03/2004 LOW 42 05/01/1999 HIGHEST 87 05/13 80 7 97 05/14 05/14 LOWEST 47 05/04 53 -6 46 05/11 AVG. MAXIMUM 73.6 79.8 -6.2 79.5 AVG. MINIMUM 54.6 55.6 -1.0 54.9 MEAN 64.1 67.7 -3.6 67.2 DAYS MAX >= 90 0 5.0 -5.0 2 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 2.52 1977 MINIMUM 0.00 1983 TOTALS 0.78 0.30 0.48 T DAILY AVG. 0.03 0.01 0.02 T DAYS >= .01 3 1.7 1.3 0 DAYS >= .10 1 0.9 0.1 0 DAYS >= .50 1 0.0 1.0 0 DAYS >= 1.00 0 0.0 0.0 0 DAYS >= %-5.2F 0 0 DAYS >= %-5.2F 0 0 GREATEST 24 HR. TOTAL 0.74 05/04 TO 05/05 T 05/29 TO 05/29 05/28 TO 05/28 05/29 TO 05/29 STORM TOTAL 0.70 0.00 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 78 37 41 27 SINCE 7/1 1913 1288 625 MM COOLING TOTAL 56 121 -65 105 SINCE 1/1 105 214 -109 MM FREEZE DATES RECORD EARLIEST 11/30/2004 LATEST 02/14/2006 EARLIEST 02/24 LATEST 02/20 ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.8 RESULTANT WIND SPEED/DIRECTION 6/250 HIGHEST WIND SPEED/DIRECTION 20/260 DATE 05/13 20/250 05/15 20/270 05/30 HIGHEST GUST SPEED/DIRECTION 26/260 DATE 05/01 26/240 05/20 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.61 NUMBER OF DAYS FAIR 5 NUMBER OF DAYS PC 14 NUMBER OF DAYS CLOUDY 12 AVERAGE RH (PERCENT) 70 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 1 LIGHT RAIN 8 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 21 FOG W/VIS <= 1/4 MILE 0 HAZE 20 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$