924
CDUS43 KLOT 182134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT SAT OCT 18 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 18 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 73 2:27 PM 87 1950 62 11 69
MINIMUM 62 7:13 AM 20 1948 45 17 42
AVERAGE 68 53 15 56
PRECIPITATION (IN)
TODAY 0.18 2.09 1985 0.12 0.06 0.00
MONTH TO DATE 1.73 2.03 -0.30 0.30
SINCE SEP 1 2.22 5.22 -3.00 1.62
SINCE JAN 1 24.67 31.93 -7.26 28.48
SNOWFALL (IN)
TODAY 0.0 0.7 1989 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 12 -12 9
MONTH TO DATE 59 165 -106 107
SINCE SEP 1 91 242 -151 122
SINCE JUL 1 96 248 -152 122
COOLING
TODAY 3 0 3 0
MONTH TO DATE 59 12 47 13
SINCE SEP 1 225 128 97 203
SINCE JAN 1 1217 1000 217 1189
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 8.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 6:00 AM
LOWEST 63 12:00 AM
AVERAGE 78
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 84 1971
MINIMUM TEMPERATURE (F) 44 21 1992
SUNRISE AND SUNSET
OCTOBER 18 2025.......SUNRISE 7:08 AM CDT SUNSET 6:05 PM CDT
OCTOBER 19 2025.......SUNRISE 7:09 AM CDT SUNSET 6:03 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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