Climatological Report (Daily)
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859
CDUS43 KLOT 110636
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT SAT OCT 11 2025

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 10 2025...

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)
 YESTERDAY
  MAXIMUM         67   4:11 PM  86    1962  65      2       73
  MINIMUM         50   5:04 AM  27    1964  48      2       53
  AVERAGE         59                        56      3       63

PRECIPITATION (IN)
  YESTERDAY        0.01          3.94 1954   0.12  -0.11     0.00
  MONTH TO DATE    1.36                      1.12   0.24     0.01
  SINCE SEP 1      1.85                      4.31  -2.46     1.33
  SINCE JAN 1     24.30                     31.02  -6.72    28.19

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  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
  YESTERDAY        6                         9     -3        2
  MONTH TO DATE   30                        78    -48       24
  SINCE SEP 1     62                       155    -93       39
  SINCE JUL 1     67                       161    -94       39

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   55                        10     45        9
  SINCE SEP 1    221                       126     95      199
  SINCE JAN 1   1213                       998    215     1185
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     8.2


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87          10:00 PM
 LOWEST     50          12:00 PM
 AVERAGE    69

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        87      1928
 MINIMUM TEMPERATURE (F)   47        27      1906
                                             1996


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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