Climatological Report (Daily)
Issued by NWS
Issued by NWS
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987
CDUS43 KILX 180627
CLIDEC
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
127 AM CDT THU SEP 18 2025
...................................
...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 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 91 357 PM MM MM 79 12 89
MINIMUM 53 521 AM MM MM 55 -2 56
AVERAGE 72 67 5 73
PRECIPITATION (IN)
YESTERDAY 0.00 MM MM 0.09 -0.09 0.00
MONTH TO DATE 0.05 1.91 -1.86 0.10
SINCE SEP 1 0.05 1.91 -1.86 0.10
SINCE JAN 1 23.99 27.02 -3.03 31.26
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 15 19 -4 17
SINCE SEP 1 15 19 -4 17
SINCE JUL 1 16 24 -8 20
COOLING
YESTERDAY 7 4 3 8
MONTH TO DATE 100 88 12 83
SINCE SEP 1 100 88 12 83
SINCE JAN 1 1326 1046 280 1185
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 3.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 700 AM
LOWEST 26 200 PM
AVERAGE 57
..........................................................
THE DECATUR IL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 MM MM
MINIMUM TEMPERATURE (F) 54 MM MM
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 640 AM CDT SUNSET 659 PM CDT
SEPTEMBER 19 2025.....SUNRISE 640 AM CDT SUNSET 657 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$