Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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871
CDUS43 KLOT 100639
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
139 AM CDT THU SEP 10 2026
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 9 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 3:59 PM 97 1897 78 2 76
1955
MINIMUM 66 11:22 PM 41 1914 56 10 46
1923
1924
AVERAGE 73 67 6 61
PRECIPITATION (IN)
YESTERDAY 0.23 5.45 1941 0.13 0.10 0.00
MONTH TO DATE 0.27 1.20 -0.93 0.08
SINCE SEP 1 0.27 1.20 -0.93 0.08
SINCE JAN 1 22.50 27.99 -5.49 21.65
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 SEP 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 2 -2 4
MONTH TO DATE 0 12 -12 58
SINCE SEP 1 0 12 -12 58
SINCE JUL 1 0 23 -23 77
COOLING
YESTERDAY 8 4 4 0
MONTH TO DATE 114 40 74 1
SINCE SEP 1 114 40 74 1
SINCE JAN 1 861 779 82 858
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 7.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 11:00 PM
LOWEST 72 4:00 PM
AVERAGE 86
..........................................................
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 96 1931
2013
MINIMUM TEMPERATURE (F) 56 37 1917
SUNRISE AND SUNSET
SEPTEMBER 10 2026.....SUNRISE 6:31 AM CDT SUNSET 7:15 PM CDT
SEPTEMBER 11 2026.....SUNRISE 6:32 AM CDT SUNSET 7:13 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$