580
CXUS53 KLOT 011154
CLMUGN

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
554 AM CST THU JAN 01 2026

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

...THE WAUKEGAN IL CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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             69   12/05/2001
 LOW             -11   12/19/2016
HIGHEST           53   12/23                          53  12/09
                                                          12/28
LOWEST            -4   12/14                           3  12/12
                                                          12/13
                                                          12/22
AVG. MAXIMUM    32.9               35.9    -3.0     38.2
AVG. MINIMUM    17.2               21.8    -4.6     24.5
MEAN            25.0               28.9    -3.9     31.4
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    17               11.9     5.1        7
DAYS MIN <= 32    28               26.0     2.0       22
DAYS MIN <= 0      2                1.8     0.2        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.80   2015
 MINIMUM        0.46   2017
TOTALS          1.69               1.86   -0.17     0.86
DAILY AVG.      0.05               0.06   -0.01     0.03
DAYS >= .01       11                8.9     2.1        9
DAYS >= .10        3                4.3    -1.3        3
DAYS >= .50        1                1.4    -0.4        0
DAYS >= 1.00       1                0.4     0.6        0
GREATEST
 24 HR. TOTAL   1.03   12/28 TO 12/28               0.38


DEGREE DAYS
HEATING TOTAL   1230               1121     109     1038
 SINCE 7/1      2330               2451    -121       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       944                626     318       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
HIGHEST WIND SPEED/DIRECTION    31/260    DATE  12/28
HIGHEST GUST SPEED/DIRECTION    51/270    DATE  12/28

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW               14     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      1
HAZE                      4

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

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