Climatological Report (Daily)
Issued by NWS
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138
CDUS43 KLOT 120635
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT SUN OCT 12 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 11 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 11:57 AM 87 1928 65 1 83
MINIMUM 47 5:36 AM 27 1906 47 0 55
1996
AVERAGE 57 56 1 69
PRECIPITATION (IN)
YESTERDAY 0.00 1.47 1972 0.11 -0.11 0.00
MONTH TO DATE 1.36 1.23 0.13 0.01
SINCE SEP 1 1.85 4.42 -2.57 1.33
SINCE JAN 1 24.30 31.13 -6.83 28.19
SNOWFALL (IN)
YESTERDAY 0.0 T 1905 0.0 0.0 0.0
1906
1909
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 10 -2 0
MONTH TO DATE 38 88 -50 24
SINCE SEP 1 70 165 -95 39
SINCE JUL 1 75 171 -96 39
COOLING
YESTERDAY 0 1 -1 4
MONTH TO DATE 55 11 44 13
SINCE SEP 1 221 127 94 203
SINCE JAN 1 1213 999 214 1189
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 9.7
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 5:00 AM
LOWEST 52 10:00 AM
AVERAGE 71
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 84 1956
1960
2008
MINIMUM TEMPERATURE (F) 47 28 1987
1988
SUNRISE AND SUNSET
OCTOBER 12 2025.......SUNRISE 7:01 AM CDT SUNSET 6:14 PM CDT
OCTOBER 13 2025.......SUNRISE 7:02 AM CDT SUNSET 6:13 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$