Climatological Report (Daily)
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315
CDUS43 KLOT 120632
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT SAT SEP 12 2026

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 11 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         82   2:28 PM  95    1952  77      5       77
  MINIMUM         60   5:30 AM  42    1993  59      1       62
  AVERAGE         71                        68      3       70

PRECIPITATION (IN)
  YESTERDAY        0.00          2.37 2000   0.11  -0.11     0.00
  MONTH TO DATE    0.06                      1.23  -1.17     0.01
  SINCE SEP 1      0.06                      1.23  -1.17     0.01
  SINCE JAN 1     31.03                     27.94   3.09    22.46

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        0                         1     -1        0
  MONTH TO DATE    0                         8     -8       32
  SINCE SEP 1      0                         8     -8       32
  SINCE JUL 1      0                        14    -14       37

 COOLING
  YESTERDAY        6                         5      1        5
  MONTH TO DATE  144                        63     81       19
  SINCE SEP 1    144                        63     81       19
  SINCE JAN 1   1070                       935    135     1011
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SE (150)
  AVERAGE WIND SPEED     6.7


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           3:00 AM
 LOWEST     39          12:00 PM
 AVERAGE    65

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        96      1952
 MINIMUM TEMPERATURE (F)   59        44      1955
                                             2014


SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE   6:29 AM CDT   SUNSET   7:06 PM CDT
SEPTEMBER 13 2026.....SUNRISE   6:30 AM CDT   SUNSET   7:04 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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