Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS53 KLOT 011320 CLMPWK CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 820 AM CDT SUN OCT 01 2023 ................................... ...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1996 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 96 09/22/2017 09/10/2013 LOW 34 09/24/2012 HIGHEST 94 09/05 88 09/01 LOWEST 47 09/15 41 09/29 AVG. MAXIMUM 76.3 75.3 1.0 75.4 AVG. MINIMUM 58.9 56.3 2.6 57.6 MEAN 67.6 65.8 1.8 66.5 DAYS MAX >= 90 3 1.7 1.3 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.0 0.0 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.43 2008 MINIMUM 0.31 2004 TOTALS 2.89 3.04 -0.15 3.28 DAILY AVG. 0.10 0.10 -0.00 0.11 DAYS >= .01 11 9.5 1.5 7 DAYS >= .10 5 5.4 -0.4 4 DAYS >= .50 2 1.7 0.3 2 DAYS >= 1.00 1 0.7 0.3 1 GREATEST 24 HR. TOTAL 1.45 09/17 TO 09/17 1.98 DEGREE DAYS HEATING TOTAL 34 82 -48 83 SINCE 7/1 38 89 -51 MM COOLING TOTAL 119 106 13 135 SINCE 1/1 839 920 -81 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.6 HIGHEST WIND SPEED/DIRECTION 24/190 DATE 09/05 HIGHEST GUST SPEED/DIRECTION 33/190 DATE 09/05 AVERAGE RH (PERCENT) 73 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 5 LIGHT RAIN 14 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 13 FOG W/VIS <= 1/4 MILE 1 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$