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000
CXUS53 KLOT 271254 RRB
CLMRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
820 AM CDT SUN OCT 01 2023

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            103   09/07/1939
 LOW              24   09/28/1942
HIGHEST           92   09/03                          90  09/20
                       09/04
LOWEST            42   09/14                          35  09/29
AVG. MAXIMUM    77.4               75.3     2.1     75.2
AVG. MINIMUM    56.6               53.5     3.1     53.8
MEAN            67.0               64.4     2.6     64.5
DAYS MAX >= 90     2                1.5     0.5        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.3    -0.3        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.68   1961
 MINIMUM        0.05   1979
TOTALS          2.19               3.62   -1.43     5.84
DAILY AVG.      0.07               0.12   -0.05     0.19
DAYS >= .01       12                8.4     3.6        6
DAYS >= .10        6                5.4     0.6        5
DAYS >= .50        1                2.3    -1.3        2
DAYS >= 1.00       0                1.0    -1.0        1
GREATEST
 24 HR. TOTAL   0.68   09/19 TO 09/20               4.46

DEGREE DAYS
HEATING TOTAL     38                107     -69      112
 SINCE 7/1        41                116     -75       MM
COOLING TOTAL    104                 89      15      103
 SINCE 1/1       777                828     -51       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.9
HIGHEST WIND SPEED/DIRECTION    20/170    DATE  09/05
                                20/210          09/06
                                20/350          09/16
HIGHEST GUST SPEED/DIRECTION    29/180    DATE  09/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.63
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       2
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

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

NO RECORDS SET OR TIED IN SEPTEMBER 2023.

$$