524
CXUS53 KLOT 012241 CCA
CLMRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
425 AM CDT TUE SEP 01 2026
...............................
..THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 104 08/16/1988
08/05/1918
LOW 35 08/30/1915
HIGHEST 88 08/31 90 08/08
08/09
LOWEST 50 08/24 46 08/26
AVG. MAXIMUM 81.4 82.0 -0.6 80.7
AVG. MINIMUM 62.1 61.8 0.3 60.5
MEAN 71.7 71.9 -0.2 70.6
DAYS MAX >= 90 0 3.0 -3.0 2
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 13.98 2007
MINIMUM 0.21 1922
TOTALS 2.36 4.19 -1.83 3.30
DAILY AVG. 0.08 0.14 -0.06 0.11
DAYS >= .01 10 9.3 0.7 7
DAYS >= .10 7 6.2 0.8 4
DAYS >= .50 1 2.6 -1.6 3
DAYS >= 1.00 0 1.3 -1.3 1
GREATEST
24 HR. TOTAL 0.65 08/11 TO 08/11 1.40
DEGREE DAYS
HEATING TOTAL 0 8 -8 19
SINCE 7/1 0 6 -6 MM
COOLING TOTAL 216 222 -6 201
SINCE 1/1 747 739 8 MM
............................................................
WIND (MPH)
AVERAGE WIND SPEED 5.4
HIGHEST WIND SPEED/DIRECTION 33/250 DATE 08/11
HIGHEST GUST SPEED/DIRECTION 45/250 DATE 08/11
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.60
NUMBER OF DAYS FAIR 7
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 10
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 12 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 21 FOG W/VIS <= 1/4 MILE 1
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page