321
CDUS43 KLOT 180635
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST THU DEC 18 2025
...............................
..THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 17 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 39 2:13 AM 50 1941 34 5 39
1977
2006
MINIMUM 27 6:30 PM -12 1945 20 7 32
AVERAGE 33 27 6 36
PRECIPITATION (IN)
YESTERDAY 0.00 0.80 1921 0.06 -0.06 T
MONTH TO DATE 0.52 1.14 -0.62 0.46
SINCE DEC 1 0.52 1.14 -0.62 0.46
SINCE JAN 1 26.48 36.45 -9.97 34.82
SNOWFALL (IN)
YESTERDAY 0.0 3.8 1951 0.4 -0.4 T
MONTH TO DATE 8.0 5.0 3.0 0.3
SINCE DEC 1 8.0 5.0 3.0 0.3
SINCE JUL 1 18.0 7.5 10.5 0.9
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 32 38 -6 29
MONTH TO DATE 786 608 178 638
SINCE DEC 1 786 608 178 638
SINCE JUL 1 1949 1924 25 1620
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1015 839 176 958
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 9:00 PM
LOWEST 75 12:00 PM
AVERAGE 84
......................................................
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 55 1941
MINIMUM TEMPERATURE (F) 20 -17 1983
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 7:20 AM CST SUNSET 4:26 PM CST
DECEMBER 19 2025......SUNRISE 7:21 AM CST SUNSET 4:27 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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