415
CDUS43 KLOT 030631
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT FRI OCT 03 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 2 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 85 MM 91 1971 69 16 72
MINIMUM 59 MM 28 1974 51 8 48
AVERAGE 72 60 12 60
PRECIPITATION (IN)
YESTERDAY 0.00 1.76 2019 0.12 -0.12 0.00
MONTH TO DATE 0.00 0.23 -0.23 0.00
SINCE SEP 1 0.49 3.42 -2.93 1.32
SINCE JAN 1 22.94 30.13 -7.19 28.18
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 7 -7 5
MONTH TO DATE 0 13 -13 7
SINCE SEP 1 32 90 -58 22
SINCE JUL 1 37 96 -59 22
COOLING
YESTERDAY 7 1 6 0
MONTH TO DATE 12 2 10 0
SINCE SEP 1 178 118 60 190
SINCE JAN 1 1170 990 180 1176
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64 7:00 AM
LOWEST 36 2:00 PM
AVERAGE 50
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 91 1954
MINIMUM TEMPERATURE (F) 50 29 1974
1981
SUNRISE AND SUNSET
OCTOBER 3 2025.......SUNRISE 6:51 AM CDT SUNSET 6:29 PM CDT
OCTOBER 4 2025.......SUNRISE 6:52 AM CDT SUNSET 6:28 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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