635
CDUS43 KLOT 020643
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
143 AM CDT THU OCT 02 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 1 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 76 1:28 PM 92 1971 69 7 70
MINIMUM 63 6:21 AM 32 1886 51 12 55
1974
AVERAGE 70 60 10 63
PRECIPITATION (IN)
YESTERDAY 0.00 1.56 2018 0.11 -0.11 0.00
MONTH TO DATE 0.00 0.11 -0.11 0.00
SINCE SEP 1 0.49 3.30 -2.81 1.32
SINCE JAN 1 22.94 30.01 -7.07 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 6 -6 2
MONTH TO DATE 0 6 -6 2
SINCE SEP 1 32 83 -51 17
SINCE JUL 1 37 89 -52 17
COOLING
YESTERDAY 5 1 4 0
MONTH TO DATE 5 1 4 0
SINCE SEP 1 171 117 54 190
SINCE JAN 1 1163 989 174 1176
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 12:00 AM
LOWEST 50 1:00 PM
AVERAGE 63
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 91 1971
MINIMUM TEMPERATURE (F) 51 28 1974
SUNRISE AND SUNSET
OCTOBER 2 2025.......SUNRISE 6:50 AM CDT SUNSET 6:31 PM CDT
OCTOBER 3 2025.......SUNRISE 6:51 AM CDT SUNSET 6:29 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page