Climatological Report (Monthly)
Issued by NWS Chicago, IL

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798
CXUS53 KLOT 011607
CLMRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1107 AM CDT SAT JUN 01 2024

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF MAY 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2024

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           90   05/21                          89  05/31
LOWEST            42   05/04                          35  05/03
                                                          05/04
AVG. MAXIMUM    76.9               71.2     5.7     75.2
AVG. MINIMUM    51.5               49.5     2.0     47.9
MEAN            64.2               60.4     3.8     61.5
DAYS MAX >= 90     1                1.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.6    -0.6        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.75   1996
 MINIMUM        0.48   1992
TOTALS          3.96               4.18   -0.22     2.00
DAILY AVG.      0.13               0.13   -0.00     0.06
DAYS >= .01       12               12.9    -0.9        6
DAYS >= .10        7                7.6    -0.6        4
DAYS >= .50        2                2.8    -0.8        2
DAYS >= 1.00       1                1.1    -0.1        0
GREATEST
 24 HR. TOTAL   1.37   05/07 TO 05/07               0.80

SNOWFALL (INCHES)
RECORDS
 TOTAL           1.5   1940
TOTALS             T                0.0     0.0      0.0
SINCE 7/1       27.3               37.1    -9.8       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL       T   05/07 TO 05/07                0.0

DEGREE DAYS
HEATING TOTAL     70                199    -129      136
 SINCE 7/1      5331               6468   -1137       MM
COOLING TOTAL     52                 54      -2       39
 SINCE 1/1        68                 61       7       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    37/190    DATE  05/21
HIGHEST GUST SPEED/DIRECTION    51/180    DATE  05/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.57
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

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