927
CXUS53 KLOT 011258
CLMARR

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
758 AM CDT WED OCT 01 2025

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

...THE AURORA MUNICIPAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             95   09/20/2018
                       09/13/2005
                       09/10/2013
 LOW              29   09/24/2012
HIGHEST           91   09/29                          93  09/21
LOWEST            38   09/08                          39  09/08
AVG. MAXIMUM    81.1               76.2     4.9     80.3
AVG. MINIMUM    52.2               51.6     0.6     52.9
MEAN            66.7               63.9     2.8     66.6
DAYS MAX >= 90     1                2.0    -1.0        4
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        9.80   2008
 MINIMUM        0.52   2004
TOTALS          0.88               3.01   -2.13     1.17
DAILY AVG.      0.03               0.10   -0.07     0.04
DAYS >= .01        3               10.6    -7.6        3
DAYS >= .10        3                4.9    -1.9        2
DAYS >= .50        1                1.7    -0.7        2
DAYS >= 1.00       0                0.9    -0.9        0
GREATEST
 24 HR. TOTAL   0.53   09/20 TO 09/20               0.62

DEGREE DAYS
HEATING TOTAL     61                113     -52       41
 SINCE 7/1        82                131     -49       MM
COOLING TOTAL    120                 80      40       97
 SINCE 1/1      1017                768     249       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.8
HIGHEST WIND SPEED/DIRECTION    24/280    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    32/260    DATE  09/05

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       1
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      28     FOG W/VIS <= 1/4 MILE      1
HAZE                     25

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

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