Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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CDUS43 KLOT 210633
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT FRI AUG 21 2026
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 20 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 80 4:02 PM 100 1947 82 -2 81
MINIMUM 55 5:08 AM 47 1897 62 -7 61
1940
AVERAGE 68 72 -4 71
PRECIPITATION (IN)
YESTERDAY 0.00 1.37 1937 0.13 -0.13 0.03
MONTH TO DATE 1.95 2.68 -0.73 2.97
SINCE JUN 1 10.84 11.72 -0.88 12.84
SINCE JAN 1 21.82 25.28 -3.46 21.24
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 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 12 30 -18 9
SINCE JUL 1 0 3 -3 0
COOLING
YESTERDAY 3 7 -4 6
MONTH TO DATE 152 154 -2 186
SINCE JUN 1 615 610 5 804
SINCE JAN 1 683 671 12 842
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 3.5
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 36 12:00 PM
AVERAGE 66
..........................................................
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 100 1916
1955
MINIMUM TEMPERATURE (F) 61 45 1950
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 6:10 AM CDT SUNSET 7:48 PM CDT
AUGUST 22 2026........SUNRISE 6:11 AM CDT SUNSET 7:46 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$