Climatological Report (Daily)
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CDUS43 KLOT 312133
CLIPWK

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT THU JUL 31 2025

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

...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR JULY 31 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         76   2:38 PM  98    2002  84     -8       93
                                      2006
  MINIMUM         69   6:12 AM  56    1997  66      3       70
  AVERAGE         73                        75     -2       82

PRECIPITATION (IN)
  TODAY            0.00          1.65 2010   0.10  -0.10     0.09
  MONTH TO DATE    3.44                      3.15   0.29     5.69
  SINCE JUN 1      6.74                      7.12  -0.38    10.27
  SINCE JAN 1     14.51                     18.64  -4.13    24.56

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        3
  SINCE JUN 1     21                        37    -16       14
  SINCE JUL 1      0                         0      0        3

 COOLING
  TODAY            8                        10     -2       17
  MONTH TO DATE  370                       310     60      295
  SINCE JUN 1    634                       491    143      552
  SINCE JAN 1    655                       551    104      589
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NE (50)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED    12.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          12:00 AM
 LOWEST     53           9:00 AM
 AVERAGE    72

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


THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84        99      2006
 MINIMUM TEMPERATURE (F)   66        56      2019


SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE   5:44 AM CDT   SUNSET   8:11 PM CDT
AUGUST  1 2025........SUNRISE   5:45 AM CDT   SUNSET   8:10 PM CDT


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




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