572
CDUS43 KLOT 180635
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT FRI JUL 18 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 17 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 72 8:00 AM 100 1887 85 -13 82
1942
MINIMUM 58 11:59 PM 51 1985 67 -9 64
AVERAGE 65 76 -11 73
PRECIPITATION (IN)
YESTERDAY T 3.04 1969 0.12 -0.12 0.00
MONTH TO DATE 3.29 1.94 1.35 5.55
SINCE JUN 1 6.92 6.04 0.88 8.65
SINCE JAN 1 16.42 20.69 -4.27 23.92
SNOWFALL (IN)
YESTERDAY 0.0 T 1969 0.0 0.0 0.0
2003
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 0 11 -11 8
MONTH TO DATE 221 178 43 184
SINCE JUN 1 517 377 140 462
SINCE JAN 1 551 447 104 542
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 12:00 PM
LOWEST 70 8:00 PM
AVERAGE 79
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 100 1946
MINIMUM TEMPERATURE (F) 67 53 1979
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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