Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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986
CDUS43 KLOT 210632
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT THU AUG 21 2025
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 20 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 81 1:54 PM 100 1947 82 -1 74
MINIMUM 61 11:47 PM 47 1897 62 -1 54
1940
AVERAGE 71 72 -1 64
PRECIPITATION (IN)
YESTERDAY 0.03 1.37 1937 0.13 -0.10 0.00
MONTH TO DATE 2.97 2.68 0.29 1.18
SINCE JUN 1 12.84 11.72 1.12 13.44
SINCE JAN 1 21.24 25.28 -4.04 28.44
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 1
MONTH TO DATE 0 0 0 3
SINCE JUN 1 9 30 -21 11
SINCE JUL 1 0 3 -3 5
COOLING
YESTERDAY 6 7 -1 0
MONTH TO DATE 186 154 32 140
SINCE JUN 1 804 610 194 672
SINCE JAN 1 842 671 171 740
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 4.6
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 58 1:00 PM
AVERAGE 79
..........................................................
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 2025........SUNRISE 6:11 AM CDT SUNSET 7:48 PM CDT
AUGUST 22 2025........SUNRISE 6:12 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.
$$