


Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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517 CDUS43 KLOT 310633 CLIRFD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 133 AM CDT SUN AUG 31 2025 ................................... ...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 30 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1905 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 74 1:39 PM 99 1953 80 -6 80 MINIMUM 55 2:26 AM 35 1915 59 -4 60 AVERAGE 65 70 -5 70 PRECIPITATION (IN) YESTERDAY 0.00 0.94 1956 0.14 -0.14 0.82 MONTH TO DATE 3.30 4.04 -0.74 2.22 SINCE JUN 1 13.17 13.08 0.09 14.48 SINCE JAN 1 21.57 26.64 -5.07 29.48 SNOWFALL (IN) YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE JUN 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 1 -1 0 MONTH TO DATE 17 2 15 7 SINCE JUN 1 26 32 -6 15 SINCE JUL 1 17 5 12 9 COOLING YESTERDAY 0 6 -6 5 MONTH TO DATE 201 216 -15 230 SINCE JUN 1 819 672 147 762 SINCE JAN 1 857 733 124 830 ................................................................... WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (80) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (80) AVERAGE WIND SPEED 3.5 SKY COVER AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 AM LOWEST 61 11:00 AM AVERAGE 77 .......................................................... THE ROCKFORD IL CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 80 101 1953 MINIMUM TEMPERATURE (F) 59 41 1915 SUNRISE AND SUNSET AUGUST 31 2025........SUNRISE 6:21 AM CDT SUNSET 7:31 PM CDT SEPTEMBER 1 2025.....SUNRISE 6:22 AM CDT SUNSET 7:30 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$