Climatological Report (Daily)
Issued by NWS
Issued by NWS
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983
CDUS43 KLOT 031330
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
830 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 1:34 PM 91 1971 69 16 72
MINIMUM 59 6:30 AM 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
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.3
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
..........................................................
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.
$$