840
CDUS43 KLOT 180641
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT SAT JUL 18 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 17 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 92 3:58 PM 100 1887 85 7 72
1942
MINIMUM 75 MM 51 1985 67 8 58
AVERAGE 84 76 8 65
PRECIPITATION (IN)
YESTERDAY 0.00 3.04 1969 0.12 -0.12 T
MONTH TO DATE 3.56 1.94 1.62 3.29
SINCE JUN 1 8.56 6.04 2.52 6.92
SINCE JAN 1 24.15 20.69 3.46 16.42
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 0.0
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 11 31 -20 13
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 19 11 8 0
MONTH TO DATE 243 178 65 221
SINCE JUN 1 425 377 48 517
SINCE JAN 1 503 447 56 551
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 4:00 AM
LOWEST 50 11:00 AM
AVERAGE 63
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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 2026..........SUNRISE 5:32 AM CDT SUNSET 8:23 PM CDT
JULY 19 2026..........SUNRISE 5:33 AM CDT SUNSET 8:23 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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