Climatological Report (Seasonal)
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CXUS53 KLOT 011741
CLSORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1141 AM CST WED DEC 01 2021

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2021 TO 11/30/2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2021

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   09/17         MM      MM       88  09/03
                       09/19
                                                          09/02
LOWEST            18   11/26         MM      MM       28  11/02
AVG. MAXIMUM    64.9               62.2     2.7     63.7
AVG. MINIMUM    48.6               45.5     3.1     46.3
MEAN            56.8               53.9     2.9     55.0
DAYS MAX >= 90     0                1.6    -1.6       MM
DAYS MAX <= 32     1                2.2    -1.2       MM
DAYS MIN <= 32    15               17.3    -2.3       MM
DAYS MIN <= 0      0                0.0     0.0       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       19.32   1961
 MINIMUM        2.07   1956
TOTALS          7.71               9.04   -1.33     8.55
DAILY AVG.      0.08               0.10   -0.02     0.10
DAYS >= .01       29               29.0     0.0       MM
DAYS >= .10       15               17.2    -2.2       MM
DAYS >= .50        5                5.7    -0.7       MM
DAYS >= 1.00       1                2.0    -1.0       MM
GREATEST
 24 HR. TOTAL   1.85   10/24 TO 10/24               1.67  10/22 TO 10/22

DEGREE DAYS
HEATING TOTAL    968               1145    -177      999
 SINCE 7/1       968               1151    -183      999
COOLING TOTAL    242                132     110      113
 SINCE 1/1      1316               1003     313     1295
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
HIGHEST WIND SPEED/DIRECTION    33/030    DATE  10/25
HIGHEST GUST SPEED/DIRECTION    46/050    DATE  10/25

SKY COVER
AVERAGE SKY COVER           0.58


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             13     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      13
LIGHT RAIN               39     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                6     SLEET                      1
FOG                      30     FOG W/VIS <= 1/4 MILE      0
HAZE                      9

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

$$


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