468
CDUS43 KLOT 272137
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT SUN JUL 27 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 27 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 88 2:26 PM 100 1916 84 4 85
1955
MINIMUM 73 5:02 AM 52 1985 67 6 66
AVERAGE 81 76 5 76
PRECIPITATION (IN)
TODAY T 4.71 1966 0.13 -0.13 0.00
MONTH TO DATE 3.54 3.19 0.35 5.75
SINCE JUN 1 7.17 7.29 -0.12 8.85
SINCE JAN 1 16.67 21.94 -5.27 24.12
SNOWFALL (IN)
TODAY 0.0 0.0 MM 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 16 10 6 11
MONTH TO DATE 343 287 56 258
SINCE JUN 1 639 486 153 536
SINCE JAN 1 673 556 117 616
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 3.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 3:00 AM
LOWEST 65 12:00 PM
AVERAGE 81
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 100 1983
MINIMUM TEMPERATURE (F) 67 51 1984
SUNRISE AND SUNSET
JULY 27 2025..........SUNRISE 5:41 AM CDT SUNSET 8:15 PM CDT
JULY 28 2025..........SUNRISE 5:41 AM CDT SUNSET 8:14 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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