569
CXUS53 KLOT 011542
CLMRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1042 AM CDT MON JUN 01 2026

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF MAY 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              24   05/10/1966
HIGHEST           91   05/27                          94  05/15
LOWEST            27   05/02                          34  05/09
                       05/07
AVG. MAXIMUM    73.5               71.2     2.3     71.4
AVG. MINIMUM    45.4               49.5    -4.1     46.8
MEAN            59.5               60.4    -0.9     59.1
DAYS MAX >= 90     1                1.0     0.0        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     4                0.6     3.4        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.75   1996
 MINIMUM        0.48   1992
TOTALS          0.52               4.18   -3.66     2.17
DAILY AVG.      0.02               0.13   -0.11     0.07
DAYS >= .01        9               12.9    -3.9        8
DAYS >= .10        1                7.6    -6.6        4
DAYS >= .50        0                2.8    -2.8        2
DAYS >= 1.00       0                1.1    -1.1        1
GREATEST
 24 HR. TOTAL   0.19   05/24 TO 05/24               1.05

SNOWFALL (INCHES)
RECORDS
 TOTAL           1.5   1940
TOTALS           0.0                0.0     0.0        T
SINCE 7/1       30.8               37.1    -6.3       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0                                   T

DEGREE DAYS
HEATING TOTAL    216                199      17      210
 SINCE 7/1      6084               6468    -384       MM
COOLING TOTAL     53                 54      -1       34
 SINCE 1/1        68                 61       7       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.7
HIGHEST WIND SPEED/DIRECTION    37/250    DATE  05/16
HIGHEST GUST SPEED/DIRECTION    40/200    DATE  05/03
                                40/230          05/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$