805
CDUS43 KLOT 040638
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT FRI SEP 04 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 3 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 91 3:05 PM 97 1953 80 11 72
MINIMUM 77 11:43 PM 47 1974 62 15 55
AVERAGE 84 71 13 64
PRECIPITATION (IN)
YESTERDAY 0.00 1.92 1961 0.11 -0.11 0.01
MONTH TO DATE 0.00 0.35 -0.35 0.01
SINCE SEP 1 0.00 0.35 -0.35 0.01
SINCE JAN 1 30.97 27.06 3.91 22.46
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 0 0 1
MONTH TO DATE 0 0 0 1
SINCE SEP 1 0 0 0 1
SINCE JUL 1 0 6 -6 6
COOLING
YESTERDAY 19 6 13 0
MONTH TO DATE 62 19 43 8
SINCE SEP 1 62 19 43 8
SINCE JAN 1 988 891 97 1000
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 7.1
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 2:00 AM
LOWEST 54 3:00 PM
AVERAGE 68
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 1954
1960
1983
MINIMUM TEMPERATURE (F) 62 45 1982
1997
SUNRISE AND SUNSET
SEPTEMBER 4 2026.....SUNRISE 6:20 AM CDT SUNSET 7:20 PM CDT
SEPTEMBER 5 2026.....SUNRISE 6:21 AM CDT SUNSET 7:18 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