523
CDUS43 KLOT 092145
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
445 PM CDT THU OCT 09 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 9 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 64 1:26 PM 86 1949 66 -2 70
2010
MINIMUM 45 3:34 AM 30 2000 48 -3 51
AVERAGE 55 57 -2 61
PRECIPITATION (IN)
TODAY 0.00 2.27 1954 0.11 -0.11 0.00
MONTH TO DATE 1.35 1.00 0.35 0.01
SINCE SEP 1 1.84 4.19 -2.35 1.33
SINCE JAN 1 24.29 30.90 -6.61 28.19
SNOWFALL (IN)
TODAY 0.0 T 1906 0.0 0.0 0.0
1925
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 10 9 1 4
MONTH TO DATE 24 69 -45 22
SINCE SEP 1 56 146 -90 37
SINCE JUL 1 61 152 -91 37
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 55 9 46 9
SINCE SEP 1 221 125 96 199
SINCE JAN 1 1213 997 216 1185
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 3:00 AM
LOWEST 39 2:00 PM
AVERAGE 63
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 86 1962
MINIMUM TEMPERATURE (F) 48 27 1964
SUNRISE AND SUNSET
OCTOBER 9 2025.......SUNRISE 6:58 AM CDT SUNSET 6:19 PM CDT
OCTOBER 10 2025.......SUNRISE 6:59 AM CDT SUNSET 6:18 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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