Climatological Report (Daily)
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120
CDUS43 KLOT 010635
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT SAT NOV 01 2025

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 31 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         53   3:06 PM  84    1950  56     -3       71
  MINIMUM         40   6:52 AM  23    1873  40      0       43
  AVERAGE         47                        48     -1       57

PRECIPITATION (IN)
  YESTERDAY        0.07          2.26 1994   0.10  -0.03     0.03
  MONTH TO DATE    2.60                      3.43  -0.83     1.18
  SINCE SEP 1      3.09                      6.62  -3.53     2.50
  SINCE JAN 1     25.54                     33.33  -7.79    29.36

SNOWFALL (IN)
  YESTERDAY        0.0           3.4  2019   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.2   -0.2      0.0
  SINCE SEP 1      0.0                       0.2   -0.2      0.0
  SINCE JUL 1      0.0                       0.2   -0.2      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       18                        17      1        8
  MONTH TO DATE  259                       357    -98      194
  SINCE SEP 1    291                       434   -143      209
  SINCE JUL 1    296                       440   -144      209

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   57                        15     42       35
  SINCE SEP 1    223                       131     92      225
  SINCE JAN 1   1215                      1003    212     1211
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     7.3


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           9:00 PM
 LOWEST     50          12:00 PM
 AVERAGE    70

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        81      1950
 MINIMUM TEMPERATURE (F)   40        21      1879


SUNRISE AND SUNSET
NOVEMBER  1 2025......SUNRISE   7:25 AM CDT   SUNSET   5:45 PM CDT
NOVEMBER  2 2025......SUNRISE   6:26 AM CST   SUNSET   4:44 PM CST


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




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