Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KILX 172139
CLIDEC
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
439 PM CDT MON AUG 17 2026
...................................
...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR AUGUST 17 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 237 PM MM MM 84 -2 90
MINIMUM 70 704 AM MM MM 63 7 73
AVERAGE 76 74 2 82
PRECIPITATION (IN)
TODAY 0.00 MM MM 0.09 -0.09 0.31
MONTH TO DATE 3.24 1.43 1.81 1.46
SINCE JUN 1 13.57 9.13 4.44 13.54
SINCE JAN 1 30.90 23.51 7.39 23.84
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 1 12 -11 0
SINCE JUL 1 1 1 0 0
COOLING
TODAY 11 9 2 17
MONTH TO DATE 203 164 39 222
SINCE JUN 1 775 739 36 1053
SINCE JAN 1 887 849 38 1138
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 11.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 100 AM
LOWEST 51 300 PM
AVERAGE 74
..........................................................
THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 MM MM
MINIMUM TEMPERATURE (F) 63 MM MM
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 609 AM CDT SUNSET 749 PM CDT
AUGUST 18 2026........SUNRISE 610 AM CDT SUNSET 747 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$