Climatological Report (Seasonal)
Issued by NWS

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CXUS53 KLOT 021728
CLSORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1128 AM CST WED DEC 02 2020

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2020 TO 11/30/2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1871 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            101   09/02/1953
                       09/01/1953
 LOW              -2   11/24/1950
                       11/29/1872
HIGHEST           88   09/03         MM      MM       90
                       09/02
LOWEST            28   11/02         MM      MM        7
AVG. MAXIMUM    63.7               61.8     1.9     59.1
AVG. MINIMUM    46.3               43.2     3.1     44.3
MEAN            55.0               52.5     2.5     51.7
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32    11
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       19.32   1961
 MINIMUM        2.07   1956
TOTALS          8.55               9.51   -0.96
DAYS >= .01       30
DAYS >= .10       21
DAYS >= .50        6
DAYS >= 1.00       1

DEGREE DAYS
HEATING TOTAL    999               1243    -244
 SINCE 7/1       999               1254    -255
COOLING TOTAL    113                103      10
 SINCE 1/1      1295                843     452
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.1
HIGHEST WIND SPEED/DIRECTION    39/240    DATE  11/10
HIGHEST GUST SPEED/DIRECTION    64/250    DATE  11/10


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP               0
HEAVY RAIN               11     RAIN                      16
LIGHT RAIN               36     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                4     SLEET                      0
FOG                      29     FOG W/VIS <= 1/4 MILE      0
HAZE                     18

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

$$



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