635
CXUS53 KLOT 011745
CLSRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1245 PM CDT MON JUN 01 2026

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2026 TO 5/31/2026...

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            106   05/31/1934
 LOW             -11   03/03/2014
                       03/04/2002
                       03/01/1962
HIGHEST           91   05/27                          94  05/15
LOWEST             7   03/17                          12  03/02
AVG. MAXIMUM    64.2               59.1     5.1     62.6
AVG. MINIMUM    39.4               38.7     0.7     38.7
MEAN            51.8               48.9     2.9     50.6
DAYS MAX >= 90     1                1.0     0.0        1
DAYS MAX <= 32     2                4.0    -2.0        1
DAYS MIN <= 32    26               29.9    -3.9       28
DAYS MIN <= 0      0                0.4    -0.4        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       21.43   1973
 MINIMUM        3.13   1934
TOTALS         10.04              10.33   -0.29     7.15
DAILY AVG.      0.11               0.11   -0.00     0.08
DAYS >= .01       40               35.5     4.5       27
DAYS >= .10       18               20.1    -2.1       16
DAYS >= .50        8                6.6     1.4        5
DAYS >= 1.00       3                2.6     0.4        2
GREATEST
 24 HR. TOTAL   1.49   04/01 TO 04/02               1.12

SNOWFALL (INCHES)
RECORDS
 TOTAL          24.5   1923
TOTALS           6.8                5.8     1.0      4.2
SINCE 7/1       30.8               37.1    -6.3       MM
DAYS >= 1.0        2                2.0     0.0        1
GREATEST
 SNOW DEPTH        6   03/17                           3  03/16
                       03/18
 24 HR TOTAL     5.7   03/15 TO 03/16                4.1

DEGREE DAYS
HEATING TOTAL   1260               1541    -281     1334
 SINCE 7/1      6084               6468    -384       MM
COOLING TOTAL     68                 61       7       38
 SINCE 1/1        68                 61       7       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    44/200    DATE  03/13
HIGHEST GUST SPEED/DIRECTION    63/200    DATE  04/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.68
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             49
NUMBER OF DAYS CLOUDY         37

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             23     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      15
LIGHT RAIN               46     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                9     SLEET                      1
FOG                      44     FOG W/VIS <= 1/4 MILE      3
HAZE                     11

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

$$