274
CDUS43 KLOT 050637
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
137 AM CDT FRI SEP 05 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 4 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 66 4:51 PM 95 1954 80 -14 84
1960
1983
MINIMUM 48 5:57 AM 45 1982 62 -14 58
1997
AVERAGE 57 70 -13 71
PRECIPITATION (IN)
YESTERDAY 0.00 2.95 1894 0.12 -0.12 0.00
MONTH TO DATE 0.01 0.47 -0.46 0.00
SINCE SEP 1 0.01 0.47 -0.46 0.00
SINCE JAN 1 22.46 27.18 -4.72 26.86
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 8 1 7 0
MONTH TO DATE 9 1 8 0
SINCE SEP 1 9 1 8 0
SINCE JUL 1 14 7 7 0
COOLING
YESTERDAY 0 6 -6 6
MONTH TO DATE 8 25 -17 14
SINCE SEP 1 8 25 -17 14
SINCE JAN 1 1000 897 103 1000
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 4:00 AM
LOWEST 37 1:00 PM
AVERAGE 60
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 98 1899
MINIMUM TEMPERATURE (F) 61 44 1984
1988
SUNRISE AND SUNSET
SEPTEMBER 5 2025.....SUNRISE 6:22 AM CDT SUNSET 7:18 PM CDT
SEPTEMBER 6 2025.....SUNRISE 6:23 AM CDT SUNSET 7:16 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