103
CDUS43 KLOT 250646
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
146 AM CDT MON AUG 25 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 24 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 73 4:09 PM 100 1947 82 -9 91
2023
MINIMUM 59 6:01 AM 48 1942 64 -5 64
AVERAGE 66 73 -7 78
PRECIPITATION (IN)
YESTERDAY 0.00 2.47 1895 0.13 -0.13 0.00
MONTH TO DATE 4.68 3.32 1.36 1.50
SINCE JUN 1 12.60 11.13 1.47 10.49
SINCE JAN 1 22.10 25.78 -3.68 25.76
SNOWFALL (IN)
YESTERDAY 0.0 T 1971 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 13 33 -20 6
SINCE JUL 1 0 2 -2 0
COOLING
YESTERDAY 1 8 -7 13
MONTH TO DATE 261 224 37 201
SINCE JUN 1 950 749 201 795
SINCE JAN 1 984 819 165 875
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 10.1
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 6:00 AM
LOWEST 43 3:00 PM
AVERAGE 62
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 95 1959
1991
2003
MINIMUM TEMPERATURE (F) 64 47 1917
SUNRISE AND SUNSET
AUGUST 25 2025........SUNRISE 6:10 AM CDT SUNSET 7:36 PM CDT
AUGUST 26 2025........SUNRISE 6:11 AM CDT SUNSET 7:34 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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