Climatological Report (Monthly)
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000
CXUS53 KLOT 011509
CLMMDW

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1009 AM CDT TUE AUG 01 2023

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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF JULY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            109   07/23/1934
 LOW              46   07/05/1972
HIGHEST           93   07/28                          95  07/05
LOWEST            60   07/09                          62  07/10
AVG. MAXIMUM    84.5               85.0    -0.5     85.5
AVG. MINIMUM    67.2               67.7    -0.5     69.9
MEAN            75.9               76.3    -0.4     77.7
DAYS MAX >= 90     7                8.0    -1.0        6
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       10.39   2010
 MINIMUM        0.31   1936
TOTALS         11.28               3.55    7.73     6.52
DAILY AVG.      0.36               0.11    0.25     0.21
DAYS >= .01       12                9.7     2.3        8
DAYS >= .10       10                5.5     4.5        8
DAYS >= .50        5                2.3     2.7        5
DAYS >= 1.00       5                0.8     4.2        3
GREATEST
 24 HR. TOTAL   4.68   07/02 TO 07/02               1.99

DEGREE DAYS
HEATING TOTAL      0                  1      -1        0
 SINCE 7/1         0                  0       0       MM
COOLING TOTAL    345                353      -8      402
 SINCE 1/1       666                657       9       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.5
HIGHEST WIND SPEED/DIRECTION    37/220    DATE  07/05
HIGHEST GUST SPEED/DIRECTION    67/320    DATE  07/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.52
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       6
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      1
HAZE                      8

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

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