Climatological Report (Monthly)
Issued by NWS Central Illinois

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058
CXUS53 KILX 011618 CCA
CLMSPI

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1045 AM CDT THU OCT 01 2026

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

...THE SPRINGFIELD IL CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1879 TO 2026

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          100   09/02         79      21       98
LOWEST            45   09/28         57     -12       39
                       09/29
AVG. MAXIMUM    84.8               80.2     4.6     84.2
AVG. MINIMUM    63.9               55.8     8.1     54.2
MEAN            74.3               68.0     6.3     69.2
DAYS MAX >= 90     9                3.8     5.2        8
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          1.71               2.88   -1.17     0.56
DAILY AVG.      0.06               0.10   -0.04     0.02
DAYS >= .01        7                7.3    -0.3        4
DAYS >= .10        4                4.7    -0.7        2
DAYS >= .50        1                1.7    -0.7        0
DAYS >= 1.00       0                0.8    -0.8        0
GREATEST
 24 HR. TOTAL   1.02   09/15 TO 09/16               0.42

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   1942
 24 HR TOTAL       T   09/26/1942 TO 09/26/1942
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                                  MM

DEGREE DAYS
HEATING TOTAL      8                 61     -53       33
 SINCE 7/1         8                 64     -56       MM
COOLING TOTAL    295                151     144      168
 SINCE 1/1      1418               1220     198       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.9
HIGHEST WIND SPEED/DIRECTION    20/110    DATE  09/14
                                20/300          09/15
HIGHEST GUST SPEED/DIRECTION    30/320    DATE  09/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.33
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       4
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      10     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.

- 3rd warmest September on record.
- Record warm low of 76 degrees set on September 2.
- Record warm low of 76 degrees set on September 3.
- Record warm low of 76 degrees set on September 4.
- Record high temperature of 98 degrees set on September 17.

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