771
CXUS53 KLOT 011754 CCA
CLSORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1141 AM CST SUN DEC 01 2024

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2024 TO 11/30/2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2024

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           92   09/21                          94  09/03
                                                          09/04
                                                          09/05
LOWEST            14   11/30                          14  11/28
AVG. MAXIMUM    67.5               62.2     5.3     64.5
AVG. MINIMUM    50.1               45.5     4.6     48.5
MEAN            58.8               53.9     4.9     56.5
DAYS MAX >= 90     4                2.0     2.0        3
DAYS MAX <= 32     2                2.0     0.0        2
DAYS MIN <= 32     6               17.3   -11.3       14
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       19.32   1961
 MINIMUM        2.07   1956
TOTALS          6.13               9.04   -2.91     6.50
DAILY AVG.      0.07               0.10   -0.03     0.07
DAYS >= .01       24               29.0    -5.0       38
DAYS >= .10       12               17.2    -5.2       16
DAYS >= .50        5                5.7    -0.7        4
DAYS >= 1.00       1                2.0    -1.0        1
GREATEST
 24 HR. TOTAL   1.58   11/04 TO 11/05               1.62

SNOWFALL (INCHES)
RECORDS
 TOTAL          14.8   1940
TOTALS           2.9                2.0     0.9      2.7
SINCE 7/1        2.9                2.0     0.9      2.7
DAYS >= 1.0        1                1.0     0.0        1
GREATEST
 SNOW DEPTH        0                                   1  11/26
                                                          11/27
 24 HR TOTAL     2.9   11/21 TO 11/21                1.8

DEGREE DAYS
HEATING TOTAL    767               1145    -378      962
 SINCE 7/1       767               1151    -384      964
COOLING TOTAL    226                132      94      211
 SINCE 1/1      1212               1003     209     1145
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    33/020    DATE  09/27
HIGHEST GUST SPEED/DIRECTION    50/200    DATE  10/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.55
NUMBER OF DAYS FAIR           27
NUMBER OF DAYS PC             32
NUMBER OF DAYS CLOUDY         32

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       9
LIGHT RAIN               29     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       1
LIGHT SNOW                4     SLEET                      0
FOG                      25     FOG W/VIS <= 1/4 MILE      1
HAZE                     14

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

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