Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
421
CXUS53 KILX 011605
CLSDEC
CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1105 AM CDT MON JUN 01 2026
...................................
...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2026 TO 5/31/2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 2000 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 97 05/28/2018
LOW -9 03/06/2015
HIGHEST 88 03/26 MM MM 91
LOWEST 14 03/17 MM MM 16
AVG. MAXIMUM 68.2 63.4 4.8 67.8
AVG. MINIMUM 45.1 42.7 2.4 44.6
MEAN 56.7 53.0 3.7 56.2
DAYS MAX >= 90 0 1.0 -1.0 1
DAYS MAX <= 32 2 1.0 1.0 0
DAYS MIN <= 32 11 21.8 -10.8 16
DAYS MIN <= 0 0 0.2 -0.2 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 17.93 2002
MINIMUM 4.73 2005
TOTALS 16.52 10.55 5.97 9.73
DAILY AVG. 0.18 0.10
DAYS >= .01 33 35.0 -2.0 34
DAYS >= .10 23 21.2 1.8 22
DAYS >= .50 13 7.3 5.7 5
DAYS >= 1.00 3 2.2 0.8 2
GREATEST
24 HR. TOTAL 2.52 04/27 TO 04/27 1.20
DEGREE DAYS
HEATING TOTAL 856 1209 -353 874
SINCE 7/1 4920 5383 -463 MM
COOLING TOTAL 112 110 2 85
SINCE 1/1 112 110 2 MM
FREEZE DATES
RECORD
EARLIEST MM
LATEST MM
EARLIEST 10/24
LATEST 04/12
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 12.3
HIGHEST WIND SPEED/DIRECTION 39/130 DATE 03/15
HIGHEST GUST SPEED/DIRECTION 57/320 DATE 04/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.38
NUMBER OF DAYS FAIR 50
NUMBER OF DAYS PC 29
NUMBER OF DAYS CLOUDY 13
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 18 MIXED PRECIP 0
HEAVY RAIN 13 RAIN 19
LIGHT RAIN 39 FREEZING RAIN 1
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 6 SLEET 0
FOG 45 FOG W/VIS <= 1/4 MILE 4
HAZE 7
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$