775
CDUS43 KLOT 260632
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT FRI SEP 26 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 25 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 77 2:06 PM 92 2017 72 5 77
MINIMUM 58 4:17 AM 30 1942 53 5 57
AVERAGE 68 63 5 67
PRECIPITATION (IN)
YESTERDAY 0.00 1.85 1961 0.11 -0.11 0.00
MONTH TO DATE 0.49 2.70 -2.21 1.31
SINCE SEP 1 0.49 2.70 -2.21 1.31
SINCE JAN 1 22.94 29.41 -6.47 28.17
SNOWFALL (IN)
YESTERDAY 0.0 T 1928 0.0 0.0 0.0
1942
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 4 -4 0
MONTH TO DATE 32 49 -17 15
SINCE SEP 1 32 49 -17 15
SINCE JUL 1 37 55 -18 15
COOLING
YESTERDAY 3 2 1 2
MONTH TO DATE 125 108 17 169
SINCE SEP 1 125 108 17 169
SINCE JAN 1 1117 980 137 1155
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 43 3:00 PM
AVERAGE 68
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 2017
MINIMUM TEMPERATURE (F) 53 35 1928
SUNRISE AND SUNSET
SEPTEMBER 26 2025.....SUNRISE 6:44 AM CDT SUNSET 6:41 PM CDT
SEPTEMBER 27 2025.....SUNRISE 6:45 AM CDT SUNSET 6:40 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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