892
CDUS43 KLOT 152132
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
432 PM CDT MON SEP 15 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 15 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 83 2:10 PM 99 1939 76 7 90
MINIMUM 65 5:49 AM 39 2007 58 7 67
AVERAGE 74 67 7 79
PRECIPITATION (IN)
TODAY 0.00 1.38 1936 0.10 -0.10 0.00
MONTH TO DATE 0.28 1.63 -1.35 0.04
SINCE SEP 1 0.28 1.63 -1.35 0.04
SINCE JAN 1 22.73 28.34 -5.61 26.90
SNOWFALL (IN)
TODAY 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
TODAY 0 2 -2 0
MONTH TO DATE 32 16 16 14
SINCE SEP 1 32 16 16 14
SINCE JUL 1 37 22 15 14
COOLING
TODAY 9 4 5 14
MONTH TO DATE 49 79 -30 90
SINCE SEP 1 49 79 -30 90
SINCE JAN 1 1041 951 90 1076
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 7:00 AM
LOWEST 41 2:00 PM
AVERAGE 59
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1931
1955
MINIMUM TEMPERATURE (F) 57 37 1984
SUNRISE AND SUNSET
SEPTEMBER 15 2025.....SUNRISE 6:32 AM CDT SUNSET 7:01 PM CDT
SEPTEMBER 16 2025.....SUNRISE 6:33 AM CDT SUNSET 6:59 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