Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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788
CDUS43 KLOT 170633
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SUN AUG 17 2025
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 16 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 89 2:08 PM 104 1988 82 7 86
MINIMUM 68 5:40 AM 44 1992 62 6 67
AVERAGE 79 72 7 77
PRECIPITATION (IN)
YESTERDAY 0.08 3.58 1968 0.14 -0.06 0.44
MONTH TO DATE 2.29 2.13 0.16 1.18
SINCE JUN 1 12.16 11.17 0.99 13.44
SINCE JAN 1 20.56 24.73 -4.17 28.44
SNOWFALL (IN)
YESTERDAY 0.0 T 1935 0.0 0.0 0.0
1948
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 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 0 0 0
MONTH TO DATE 0 0 0 2
SINCE JUN 1 9 30 -21 10
SINCE JUL 1 0 3 -3 4
COOLING
YESTERDAY 14 7 7 12
MONTH TO DATE 146 126 20 117
SINCE JUN 1 764 582 182 649
SINCE JAN 1 802 643 159 717
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 11:00 PM
LOWEST 61 11:00 AM
AVERAGE 79
..........................................................
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 102 1988
MINIMUM TEMPERATURE (F) 62 46 1924
SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE 6:06 AM CDT SUNSET 7:54 PM CDT
AUGUST 18 2025........SUNRISE 6:07 AM CDT SUNSET 7:52 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$