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CXUS53 KLOT 011710
CLSORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1110 AM CST MON DEC 01 2025

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2025 TO 11/30/2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            101   09/02/1953
                       09/01/1953
 LOW              -2   11/24/1950
                       11/29/1872
HIGHEST           89   09/19                          92  09/21
                       09/29
                       10/03
LOWEST            18   11/30                          14  11/30
AVG. MAXIMUM    64.8               62.2     2.6     67.5
AVG. MINIMUM    48.4               45.5     2.9     50.1
MEAN            56.6               53.9     2.7     58.8
DAYS MAX >= 90     0                2.0    -2.0        4
DAYS MAX <= 32     2                2.0     0.0        2
DAYS MIN <= 32    10               17.3    -7.3        6
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       19.32   1961
 MINIMUM        2.07   1956
TOTALS          5.27               9.04   -3.77     6.13
DAILY AVG.      0.06               0.10   -0.04     0.07
DAYS >= .01       15               29.0   -14.0       24
DAYS >= .10        7               17.2   -10.2       12
DAYS >= .50        1                5.7    -4.7        5
DAYS >= 1.00       0                2.0    -2.0        1
GREATEST
 24 HR. TOTAL   1.35   10/06 TO 10/07               1.58

SNOWFALL (INCHES)
RECORDS
 TOTAL          14.8   1940
TOTALS          10.4                2.0     8.4      2.9
SINCE 7/1       10.4                2.0     8.4       MM
DAYS >= 1.0        2                1.0     1.0        1
GREATEST
 SNOW DEPTH        7   11/30                           0  MM
 24 HR TOTAL     8.4R  11/29 TO 11/29                2.9

DEGREE DAYS
HEATING TOTAL    964               1145    -181      767
 SINCE 7/1       969               1151    -182       MM
COOLING TOTAL    223                132      91      226
 SINCE 1/1      1215               1003     212       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    36/270    DATE  11/26
HIGHEST GUST SPEED/DIRECTION    50/250    DATE  11/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.53
NUMBER OF DAYS FAIR           31
NUMBER OF DAYS PC             37
NUMBER OF DAYS CLOUDY         23

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                      10
LIGHT RAIN               26     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                2     SNOW                       2
LIGHT SNOW                7     SLEET                      0
FOG                      28     FOG W/VIS <= 1/4 MILE      2
HAZE                      8

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

$$