491
CDUS43 KLOT 182136
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT FRI JUL 18 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 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 80 1:48 PM 100 1946 85 -5 75
MINIMUM 58 3:34 AM 53 1979 67 -9 61
AVERAGE 69 76 -7 68
PRECIPITATION (IN)
TODAY 0.00 2.90 1993 0.11 -0.11 0.00
MONTH TO DATE 3.29 2.05 1.24 5.55
SINCE JUN 1 6.92 6.15 0.77 8.65
SINCE JAN 1 16.42 20.80 -4.38 23.92
SNOWFALL (IN)
TODAY 0.0 T 1992 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
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 13 31 -18 6
SINCE JUL 1 0 0 0 0
COOLING
TODAY 4 11 -7 3
MONTH TO DATE 225 189 36 187
SINCE JUN 1 521 388 133 465
SINCE JAN 1 555 458 97 545
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 5:00 AM
LOWEST 54 1:00 PM
AVERAGE 71
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 101 1930
MINIMUM TEMPERATURE (F) 67 50 1873
SUNRISE AND SUNSET
JULY 18 2025..........SUNRISE 5:32 AM CDT SUNSET 8:23 PM CDT
JULY 19 2025..........SUNRISE 5:33 AM CDT SUNSET 8:22 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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