Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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170
CDUS43 KLOT 150634
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE SEP 15 2026
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 14 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 69 4:38 PM 101 1939 76 -7 87
MINIMUM 44 5:54 AM 30 1923 54 -10 63
AVERAGE 57 65 -8 75
PRECIPITATION (IN)
YESTERDAY T 1.81 1911 0.13 -0.13 0.00
MONTH TO DATE 0.31 1.81 -1.50 0.30
SINCE SEP 1 0.31 1.81 -1.50 0.30
SINCE JAN 1 22.54 28.60 -6.06 21.87
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 8 3 5 0
MONTH TO DATE 14 24 -10 59
SINCE SEP 1 14 24 -10 59
SINCE JUL 1 14 35 -21 78
COOLING
YESTERDAY 0 3 -3 10
MONTH TO DATE 129 57 72 29
SINCE SEP 1 129 57 72 29
SINCE JAN 1 876 796 80 886
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 7.8
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 47 5:00 PM
AVERAGE 74
..........................................................
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 102 1939
MINIMUM TEMPERATURE (F) 54 35 2007
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 6:36 AM CDT SUNSET 7:06 PM CDT
SEPTEMBER 16 2026.....SUNRISE 6:37 AM CDT SUNSET 7:04 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$