Climatological Report (Monthly)
Issued by NWS

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CXUS53 KILX 011146
CLMDEC

CLIMATE REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
646 AM CDT TUE JUN 01 2021

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

...THE DECATUR IL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2021...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             MM   MM
 LOW              31   05/12/2021
HIGHEST           87   05/25         MM      MM       86
LOWEST            31R  05/12         MM      MM       29
AVG. MAXIMUM    71.9               74.4    -2.5     70.2
AVG. MINIMUM    51.3               53.4    -2.1     51.4
MEAN            61.6               63.9    -2.3     60.8
DAYS MAX >= 90     0                0.8    -0.8        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     1                0.2     0.8        1
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM          MM   MM
 MINIMUM          MM   MM
TOTALS          5.37               4.38    0.99     5.47
DAILY AVG.      0.17               0.14    0.03     0.18
DAYS >= .01       13               13.2    -0.2       16
DAYS >= .10       11                8.4     2.6       10
DAYS >= .50        5                2.7     2.3        4
DAYS >= 1.00       0                0.8    -0.8        1
GREATEST
 24 HR. TOTAL   1.26   05/27 TO 05/28               1.29


DEGREE DAYS
HEATING TOTAL    188                128      60      195
 SINCE 7/1      5340               5383     -43     5368
COOLING TOTAL     90                 94      -4       72
 SINCE 1/1       108                110      -2       80
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    35/200    DATE  05/25
HIGHEST GUST SPEED/DIRECTION    46/250    DATE  05/27

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       8
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$



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