Climatological Report (Monthly)
Issued by NWS Central Illinois

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938
CXUS53 KILX 011623
CLMSPI

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1123 AM CDT WED OCT 01 2025

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

...THE SPRINGFIELD IL CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1879 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            102   09/01/2011
 LOW              31   09/30/1899
                       09/29/1899
HIGHEST           98   09/14         79      19       93
LOWEST            39   09/07         57     -18       40
AVG. MAXIMUM    84.2               80.2     4.0     81.5
AVG. MINIMUM    54.2               55.8    -1.6     55.6
MEAN            69.2               68.0     1.2     68.6
DAYS MAX >= 90     8                3.8     4.2        4
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.1    -0.1        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       15.16   1926
 MINIMUM           T   1979
TOTALS          0.56               2.88   -2.32     1.66
DAILY AVG.      0.02               0.10   -0.08     0.06
DAYS >= .01        4                7.3    -3.3        9
DAYS >= .10        2                4.7    -2.7        4
DAYS >= .50        0                1.7    -1.7        1
DAYS >= 1.00       0                0.8    -0.8        0
GREATEST
 24 HR. TOTAL   0.42   09/20 TO 09/20               0.68

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   1942
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0       MM
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL      MM                                 0.0

DEGREE DAYS
HEATING TOTAL     33                 61     -28       21
 SINCE 7/1        46                 64     -18       MM
COOLING TOTAL    168                151      17      136
 SINCE 1/1      1235               1220      15       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.3
HIGHEST WIND SPEED/DIRECTION    26/230    DATE  09/21
HIGHEST GUST SPEED/DIRECTION    43/210    DATE  09/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.13
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                5     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                      1

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

&&

DAILY RECORDS:
RECORD LOW TEMPERATURE OF 39 DEGREES WAS SET ON SEPTEMBER 7TH.

MONTHLY TOP-10 RANKINGS:
THIS RANKS 7TH DRIEST SEPTEMBER ON RECORD.
THIS RANKS 10TH WARMEST AVERAGE MAX TEMPERATURE FOR SEPTEMBER ON RECORD.

$$