Climatological Report (Monthly)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
000 CXUS53 KLOT 011320 CLMRFD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 820 AM CDT SUN OCT 01 2023 ................................... ...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1905 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 103 09/07/1939 LOW 24 09/28/1942 HIGHEST 92 09/03 90 09/20 09/04 LOWEST 42 09/14 35 09/29 AVG. MAXIMUM 77.4 75.3 2.1 75.2 AVG. MINIMUM 56.6 53.5 3.1 53.8 MEAN 67.0 64.4 2.6 64.5 DAYS MAX >= 90 2 1.5 0.5 1 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.3 -0.3 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 10.68 1961 MINIMUM 0.05 1979 TOTALS 2.19 3.62 -1.43 5.84 DAILY AVG. 0.07 0.12 -0.05 0.19 DAYS >= .01 12 8.4 3.6 6 DAYS >= .10 6 5.4 0.6 5 DAYS >= .50 1 2.3 -1.3 2 DAYS >= 1.00 0 1.0 -1.0 1 GREATEST 24 HR. TOTAL 0.68 09/19 TO 09/20 4.46 DEGREE DAYS HEATING TOTAL 38 107 -69 112 SINCE 7/1 41 116 -75 MM COOLING TOTAL 104 89 15 103 SINCE 1/1 777 828 -51 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.9 HIGHEST WIND SPEED/DIRECTION 20/170 DATE 09/05 20/210 09/06 20/350 09/16 HIGHEST GUST SPEED/DIRECTION 29/180 DATE 09/05 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.63 NUMBER OF DAYS FAIR 7 NUMBER OF DAYS PC 10 NUMBER OF DAYS CLOUDY 13 AVERAGE RH (PERCENT) 73 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 6 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 2 LIGHT RAIN 17 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 20 FOG W/VIS <= 1/4 MILE 1 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. NO RECORDS SET OR TIED IN SEPTEMBER 2023. $$