203
CDUS43 KLOT 300633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT WED JUL 30 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 29 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 93 2:39 PM 99 1913 84 9 84
MINIMUM 70 3:28 AM 50 1984 67 3 71
AVERAGE 82 75 7 78
PRECIPITATION (IN)
YESTERDAY T 1.58 1989 0.13 -0.13 0.11
MONTH TO DATE 3.61 3.44 0.17 5.89
SINCE JUN 1 7.24 7.54 -0.30 8.99
SINCE JAN 1 16.74 22.19 -5.45 24.26
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 17 10 7 13
MONTH TO DATE 379 307 72 284
SINCE JUN 1 675 506 169 562
SINCE JAN 1 709 576 133 642
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 11:00 PM
LOWEST 46 1:00 PM
AVERAGE 66
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 102 1916
MINIMUM TEMPERATURE (F) 67 50 1984
SUNRISE AND SUNSET
JULY 30 2025..........SUNRISE 5:43 AM CDT SUNSET 8:12 PM CDT
JULY 31 2025..........SUNRISE 5:44 AM CDT SUNSET 8:11 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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