696
CDUS43 KILX 180727
CLIDEC
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
127 AM CST THU DEC 18 2025
...............................
..THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 45 1159 PM MM MM 39 6 51
MINIMUM 33 721 AM MM MM 25 8 34
AVERAGE 39 32 7 43
PRECIPITATION (IN)
YESTERDAY 0.00 MM MM 0.07 -0.07 T
MONTH TO DATE 0.02 1.15 -1.13 0.57
SINCE DEC 1 0.02 1.15 -1.13 0.57
SINCE JAN 1 28.17 35.39 -7.22 41.09
DEGREE DAYS
HEATING
YESTERDAY 26 33 -7 22
MONTH TO DATE 724 521 203 553
SINCE DEC 1 724 521 203 553
SINCE JUL 1 1610 1585 25 1307
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1479 1105 374 1292
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WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 9.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 700 AM
LOWEST 62 200 AM
AVERAGE 74
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THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 39 MM MM
MINIMUM TEMPERATURE (F) 25 MM MM
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 712 AM CST SUNSET 433 PM CST
DECEMBER 19 2025......SUNRISE 712 AM CST SUNSET 433 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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