980
CXUS53 KLOT 011008
CLMUGN

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
508 AM CDT THU OCT 01 2026

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

...THE WAUKEGAN IL CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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 DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   09/10/2013
 LOW              34   09/19/2012
HIGHEST           93   09/01                          89  09/27
                       09/02
LOWEST            44   09/27                          45  09/06
                                                          09/07
AVG. MAXIMUM    73.8               73.1     0.7     78.2
AVG. MINIMUM    58.7               53.6     5.1     56.3
MEAN            66.2               63.4     2.8     67.3
DAYS MAX >= 90     3                0.5     2.5        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          4.75               3.57    1.18     1.89
DAILY AVG.      0.16               0.12    0.04     0.06
DAYS >= .01        9               11.6    -2.6        5
DAYS >= .10        6                5.9     0.1        3
DAYS >= .50        2                2.5    -0.5        1
DAYS >= 1.00       2                1.0     1.0        1
GREATEST
 24 HR. TOTAL   1.68   09/19 TO 09/20               1.30

DEGREE DAYS
HEATING TOTAL     66                121     -55       36
 SINCE 7/1        72                145     -73       MM
COOLING TOTAL    112                 71      41      112
 SINCE 1/1       694                618      76       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.5
HIGHEST WIND SPEED/DIRECTION    22/190    DATE  09/15
                                22/060          09/21
HIGHEST GUST SPEED/DIRECTION    33/090    DATE  09/20

AVERAGE RH (PERCENT)     80

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      3
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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