Climatological Report (Seasonal)
Issued by NWS

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CXUS53 KLOT 011745
CLSORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1245 PM CDT FRI SEP 01 2023

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2023 TO 8/31/2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            105   07/24/1934
 LOW              35   06/04/1945
HIGHEST          100   08/24                          99  06/21
LOWEST            49   06/12                          52  06/19
AVG. MAXIMUM    83.0               82.5     0.5     83.0
AVG. MINIMUM    64.1               64.1     0.0     64.8
MEAN            73.6               73.3     0.3     73.9
DAYS MAX >= 90    16               14.3     1.7       14
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       23.48   1987
 MINIMUM        3.16   1894
TOTALS         11.30              12.06   -0.76     9.21
DAILY AVG.      0.12               0.13   -0.01     0.10
DAYS >= .01       26               30.2    -4.2       27
DAYS >= .10       17               19.0    -2.0       18
DAYS >= .50        7                7.9    -0.9        7
DAYS >= 1.00       2                3.3    -1.3        1
GREATEST
 24 HR. TOTAL   3.79   07/01 TO 07/02               1.79

SNOWFALL (INCHES)
RECORDS
 TOTAL            MM   2022
TOTALS           0.0                0.0     0.0        T
SINCE 7/1        0.0                0.0     0.0       MM
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0                                 0.0

DEGREE DAYS
HEATING TOTAL     27                 37     -10        7
 SINCE 7/1         2                  2       0       MM
COOLING TOTAL    841                802      39      856
 SINCE 1/1       934                872      62       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
HIGHEST WIND SPEED/DIRECTION    37/320    DATE  07/28
HIGHEST GUST SPEED/DIRECTION    58/270    DATE  07/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.54
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC             53
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             19     MIXED PRECIP               0
HEAVY RAIN               13     RAIN                      17
LIGHT RAIN               27     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      28     FOG W/VIS <= 1/4 MILE      0
HAZE                     23

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

$$


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