931
CXUS53 KLOT 011258
CLMUGN

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

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

...THE WAUKEGAN IL CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 2000 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   09/10/2013
 LOW              34   09/19/2012
HIGHEST           89   09/27                          89  09/20
LOWEST            45   09/06                          45  09/08
                       09/07
AVG. MAXIMUM    78.2               73.1     5.1     77.3
AVG. MINIMUM    56.3               53.6     2.7     56.5
MEAN            67.3               63.4     3.9     66.9
DAYS MAX >= 90     0                0.5    -0.5        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.17   2019
 MINIMUM        0.43   2017
TOTALS          1.89               3.57   -1.68     1.47
DAILY AVG.      0.06               0.12   -0.06     0.05
DAYS >= .01        5               11.6    -6.6        4
DAYS >= .10        3                5.9    -2.9        2
DAYS >= .50        1                2.5    -1.5        2
DAYS >= 1.00       1                1.0     0.0        0
GREATEST
 24 HR. TOTAL   1.30   09/13 TO 09/13               0.86

DEGREE DAYS
HEATING TOTAL     36                121     -85       30
 SINCE 7/1        52                145     -93       MM
COOLING TOTAL    112                 71      41       96
 SINCE 1/1       885                618     267       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.7
HIGHEST WIND SPEED/DIRECTION    22/260    DATE  09/05
                                22/330          09/13
HIGHEST GUST SPEED/DIRECTION    37/340    DATE  09/13

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      9
HAZE                     10

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

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