545
CDUS43 KLOT 202152
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
452 PM CDT MON OCT 20 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 20 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 66 2:46 PM 86 1953 61 5 79
MINIMUM 41 6:09 AM 24 1895 44 -3 51
1930
AVERAGE 54 52 2 65
PRECIPITATION (IN)
TODAY 0.00 1.65 1916 0.10 -0.10 0.00
MONTH TO DATE 2.50 2.24 0.26 0.30
SINCE SEP 1 2.99 5.43 -2.44 1.62
SINCE JAN 1 25.44 32.14 -6.70 28.48
SNOWFALL (IN)
TODAY 0.0 3.0 1952 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 11 13 -2 0
MONTH TO DATE 82 190 -108 114
SINCE SEP 1 114 267 -153 129
SINCE JUL 1 119 273 -154 129
COOLING
TODAY 0 0 0 0
MONTH TO DATE 57 12 45 13
SINCE SEP 1 223 128 95 203
SINCE JAN 1 1215 1000 215 1189
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 9.9
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 6:00 AM
LOWEST 29 2:00 PM
AVERAGE 53
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 87 1953
MINIMUM TEMPERATURE (F) 44 26 1952
SUNRISE AND SUNSET
OCTOBER 20 2025.......SUNRISE 7:10 AM CDT SUNSET 6:02 PM CDT
OCTOBER 21 2025.......SUNRISE 7:11 AM CDT SUNSET 6:00 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