Climatological Report (Monthly)
Issued by NWS
Issued by NWS
029 CXUS53 KLOT 011319 CLMMDW CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 819 AM CDT TUE OCT 01 2024 ................................... ...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1928 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 102 09/15/1939 LOW 29 09/28/1942 HIGHEST 93 09/21 93 09/03 09/04 LOWEST 49 09/08 51 09/14 AVG. MAXIMUM 80.7 76.3 4.4 76.8 AVG. MINIMUM 62.7 58.8 3.9 60.8 MEAN 71.7 67.5 4.2 68.8 DAYS MAX >= 90 4 2.2 1.8 3 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 14.17 1961 MINIMUM 0.01 1979 TOTALS 1.89 2.77 -0.88 3.60 DAILY AVG. 0.06 0.09 -0.03 0.12 DAYS >= .01 5 8.9 -3.9 12 DAYS >= .10 3 5.4 -2.4 5 DAYS >= .50 2 1.7 0.3 3 DAYS >= 1.00 0 0.5 -0.5 2 GREATEST 24 HR. TOTAL 0.96 09/23 TO 09/24 1.30 DEGREE DAYS HEATING TOTAL 10 59 -49 15 SINCE 7/1 10 63 -53 MM COOLING TOTAL 219 136 83 137 SINCE 1/1 1342 1092 250 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 8.0 HIGHEST WIND SPEED/DIRECTION 30/030 DATE 09/27 HIGHEST GUST SPEED/DIRECTION 41/020 DATE 09/27 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.50 NUMBER OF DAYS FAIR 10 NUMBER OF DAYS PC 14 NUMBER OF DAYS CLOUDY 6 AVERAGE RH (PERCENT) 57 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 1 LIGHT RAIN 7 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 5 FOG W/VIS <= 1/4 MILE 0 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$