545
CXUS53 KILX 011527
CLMDEC

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
1027 AM CDT MON JUN 01 2026

...................................

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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              29   05/09/2020
                       05/03/2005
HIGHEST           86   05/28         MM      MM       91
                       05/30
LOWEST            37   05/07         MM      MM       42
AVG. MAXIMUM    73.4               74.4    -1.0     74.6
AVG. MINIMUM    50.4               53.4    -3.0     53.3
MEAN            61.9               63.9    -2.0     64.0
DAYS MAX >= 90     0                1.0    -1.0        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.2    -0.2        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.37   2021
 MINIMUM        1.81   2023
TOTALS          3.10               4.38   -1.28     3.44
DAILY AVG.      0.10               0.14   -0.04     0.11
DAYS >= .01       11               13.2    -2.2       10
DAYS >= .10        7                8.4    -1.4        8
DAYS >= .50        3                2.7     0.3        2
DAYS >= 1.00       0                0.8    -0.8        1
GREATEST
 24 HR. TOTAL   0.69   05/16 TO 05/16               1.03


DEGREE DAYS
HEATING TOTAL    141                128      13       89
 SINCE 7/1      4920               5383    -463       MM
COOLING TOTAL     54                 94     -40       66
 SINCE 1/1       112                110       2       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    33/220    DATE  05/04
HIGHEST GUST SPEED/DIRECTION    47/220    DATE  05/04

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$