Climatological Report (Daily)
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978
CDUS43 KLOT 112132
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
432 PM CDT SAT OCT 11 2025

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 11 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         66  11:57 AM  87    1928  65      1       83
  MINIMUM         47   5:36 AM  27    1906  47      0       55
                                      1996
  AVERAGE         57                        56      1       69

PRECIPITATION (IN)
  TODAY            0.00          1.47 1972   0.11  -0.11     0.00
  MONTH TO DATE    1.36                      1.23   0.13     0.01
  SINCE SEP 1      1.85                      4.42  -2.57     1.33
  SINCE JAN 1     24.30                     31.13  -6.83    28.19

SNOWFALL (IN)
  TODAY            0.0           T    1905   0.0    0.0      0.0
                                      1906
                                      1909
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            8                        10     -2        0
  MONTH TO DATE   38                        88    -50       24
  SINCE SEP 1     70                       165    -95       39
  SINCE JUL 1     75                       171    -96       39

 COOLING
  TODAY            0                         1     -1        4
  MONTH TO DATE   55                        11     44       13
  SINCE SEP 1    221                       127     94      203
  SINCE JAN 1   1213                       999    214     1189
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED     9.1


SKY COVER
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           5:00 AM
 LOWEST     52          10:00 AM
 AVERAGE    71

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        84      1956
                                             1960
                                             2008
 MINIMUM TEMPERATURE (F)   47        28      1987
                                             1988


SUNRISE AND SUNSET
OCTOBER 11 2025.......SUNRISE   7:00 AM CDT   SUNSET   6:16 PM CDT
OCTOBER 12 2025.......SUNRISE   7:01 AM CDT   SUNSET   6:14 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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