Climatological Report (Daily)
Issued by NWS Chicago, IL

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437
CDUS43 KLOT 300633
CLIRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SAT MAY 30 2026

...................................

...THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 29 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         85   3:16 PM  97    1934  76      9       74
  MINIMUM         46   4:30 AM  33    1965  54     -8       48
  AVERAGE         66                        65      1       61

PRECIPITATION (IN)
  YESTERDAY        0.00          1.49 1935   0.15  -0.15     0.00
  MONTH TO DATE    0.47                      3.87  -3.40     2.17
  SINCE MAR 1      9.99                     10.02  -0.03     7.15
  SINCE JAN 1     10.93                     13.25  -2.32     8.40

SNOWFALL (IN)
  YESTERDAY        0.0           T    1926   0.0    0.0      0.0
                                      1942
  MONTH TO DATE    0.0                       0.0    0.0       T
  SINCE MAR 1      6.8                       5.8    1.0      4.2
  SINCE JUL 1     30.8                      37.1   -6.3     17.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         3     -3        4
  MONTH TO DATE  216                       192     24      203
  SINCE MAR 1   1260                      1534   -274     1327
  SINCE JUL 1   6084                      6462   -378     5922

 COOLING
  YESTERDAY        1                         3     -2        0
  MONTH TO DATE   49                        47      2       34
  SINCE MAR 1     64                        54     10       38
  SINCE JAN 1     64                        54     10       38
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     4.3


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           5:00 AM
 LOWEST     31           1:00 PM
 AVERAGE    59

..........................................................


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        96      1934
 MINIMUM TEMPERATURE (F)   55        34      1984


SUNRISE AND SUNSET
MAY 30 2026...........SUNRISE   5:24 AM CDT   SUNSET   8:25 PM CDT
MAY 31 2026...........SUNRISE   5:23 AM CDT   SUNSET   8:25 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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