Climatological Report (Seasonal)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
454
CXUS53 KLOT 011710
CLSRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1110 AM CST MON DEC 01 2025
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2025 TO 11/30/2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 103 09/07/1939
LOW -10 11/26/1977
HIGHEST 89 09/29 92 09/21
10/03
LOWEST 11 11/30 11 11/30
AVG. MAXIMUM 65.2 61.6 3.6 67.2
AVG. MINIMUM 42.6 42.0 0.6 43.5
MEAN 53.9 51.8 2.1 55.4
DAYS MAX >= 90 0 2.0 -2.0 2
DAYS MAX <= 32 3 3.0 0.0 3
DAYS MIN <= 32 22 23.5 -1.5 16
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 21.56 1961
MINIMUM 3.05 1956
TOTALS 4.39 8.52 -4.13 4.88
DAILY AVG. 0.05 0.09 -0.04 0.06
DAYS >= .01 24 26.8 -2.8 16
DAYS >= .10 9 15.7 -6.7 9
DAYS >= .50 3 5.5 -2.5 3
DAYS >= 1.00 0 2.0 -2.0 1
GREATEST
24 HR. TOTAL 0.83 10/18 TO 10/19 1.31
SNOWFALL (INCHES)
RECORDS
TOTAL 15.8 2018
TOTALS 10.0 2.5 7.5 0.6
SINCE 7/1 10.0 2.5 7.5 MM
DAYS >= 1.0 2 1.0 1.0 0
GREATEST
SNOW DEPTH 9 11/30 0 MM
24 HR TOTAL 8.0 11/29 TO 11/29 0.6
DEGREE DAYS
HEATING TOTAL 1144 1305 -161 973
SINCE 7/1 1163 1317 -154 MM
COOLING TOTAL 158 100 58 123
SINCE 1/1 1015 839 176 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.7
HIGHEST WIND SPEED/DIRECTION 36/270 DATE 09/21
HIGHEST GUST SPEED/DIRECTION 53/240 DATE 11/26
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.53
NUMBER OF DAYS FAIR 29
NUMBER OF DAYS PC 35
NUMBER OF DAYS CLOUDY 27
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 8 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 7
LIGHT RAIN 30 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 7 SLEET 0
FOG 42 FOG W/VIS <= 1/4 MILE 2
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$