541
CDUS43 KILX 210638
CLIDEC
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
138 AM CDT MON SEP 21 2026
...............................
..THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 2000 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 256 PM MM MM 78 8 88
MINIMUM 67 1159 PM MM MM 53 14 61
AVERAGE 77 66 11 75
PRECIPITATION (IN)
YESTERDAY 0.10 MM MM 0.09 0.01 0.70
MONTH TO DATE 1.22 2.18 -0.96 0.79
SINCE SEP 1 1.22 2.18 -0.96 0.79
SINCE JAN 1 32.66 27.29 5.37 24.73
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 0 26 -26 15
SINCE SEP 1 0 26 -26 15
SINCE JUL 1 1 31 -30 16
COOLING
YESTERDAY 12 3 9 10
MONTH TO DATE 260 99 161 132
SINCE SEP 1 260 99 161 132
SINCE JAN 1 1257 1057 200 1358
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WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 9.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 500 AM
LOWEST 53 300 PM
AVERAGE 75
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THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 MM MM
MINIMUM TEMPERATURE (F) 53 MM MM
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 642 AM CDT SUNSET 654 PM CDT
SEPTEMBER 22 2026.....SUNRISE 643 AM CDT SUNSET 652 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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