Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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CDUS43 KLOT 130632
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT SUN SEP 13 2026
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 12 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 87 2:29 PM 95 1927 77 10 85
MINIMUM 58 5:14 AM 36 1975 55 3 57
AVERAGE 73 66 7 71
PRECIPITATION (IN)
YESTERDAY 0.00 2.92 2019 0.12 -0.12 0.00
MONTH TO DATE 0.27 1.56 -1.29 0.08
SINCE SEP 1 0.27 1.56 -1.29 0.08
SINCE JAN 1 22.50 28.35 -5.85 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 0
MONTH TO DATE 0 18 -18 59
SINCE SEP 1 0 18 -18 59
SINCE JUL 1 0 29 -29 78
COOLING
YESTERDAY 8 3 5 6
MONTH TO DATE 129 51 78 11
SINCE SEP 1 129 51 78 11
SINCE JAN 1 876 790 86 868
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 4:00 AM
LOWEST 55 1:00 PM
AVERAGE 78
..........................................................
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 99 1939
MINIMUM TEMPERATURE (F) 55 32 1975
SUNRISE AND SUNSET
SEPTEMBER 13 2026.....SUNRISE 6:34 AM CDT SUNSET 7:09 PM CDT
SEPTEMBER 14 2026.....SUNRISE 6:35 AM CDT SUNSET 7:08 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$