MONTHLY CLIMATOLOGICAL SUMMARY for SEP. 2026

NAME: Sumner Illinois Weather   CITY: Sumner   STATE: IL 
ELEV:   449 ft  LAT:  38° 43' 02" N  LONG:  87° 51' 39" W

                   TEMPERATURE (°F), RAIN  (in), WIND SPEED (mph)

                                      HEAT  COOL        AVG
    MEAN                              DEG   DEG         WIND                 DOM
DAY TEMP  HIGH   TIME   LOW    TIME   DAYS  DAYS  RAIN  SPEED HIGH   TIME    DIR
------------------------------------------------------------------------------------
 1  86.1 102.3   4:30p  71.8   7:00a   0.0  21.1  0.00   3.3  19.0  11:00a     S
 2  86.6 101.4   3:30p  73.0   7:00a   0.0  21.6  0.00   3.3  17.0   1:30p   SSE
 3  86.5 102.4   4:00p  72.2   6:30a   0.0  21.5  0.00   2.8  16.0  11:30a     N
 4  86.6 102.6   4:00p  72.8   6:30a   0.0  21.6  0.00   1.9  14.0  11:30a     N
 5  86.5  99.6   5:30p  74.2   7:00a   0.0  21.5  0.00   2.9  18.0   2:00p    NW
 6  79.1  92.0   4:00p  68.9  12:00m   0.0  14.1  0.00   4.1  17.0   4:30p     N
 7  74.7  93.2   4:30p  61.0   7:00a   0.5  10.3  0.00   3.5  23.0  12:00p     N
 8  77.4  97.4   4:00p  58.0   7:00a   1.7  14.1  0.00   2.3  15.0  12:30p     N
 9
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    82.9 102.6     4    58.0     8     2.2 145.8  0.00   3.0  23.0     7       N

Max >=  90.0:  8
Max <=  32.0:  0
Min <=  32.0:  0
Min <=   0.0:  0
Max Rain: 0.00 ON 09/01/26
Days of Rain: 0 (>.01 in) 0 (>.1 in) 0 (>1 in)
Heat Base:  65.0  Cool Base:  65.0  Method: Integration