336
CDUS43 KLOT 172134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT THU JUL 17 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 17 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 72 8:00 AM 100 1887 85 -13 82
1942
MINIMUM 65 2:43 PM 51 1985 67 -2 64
AVERAGE 69 76 -7 73
PRECIPITATION (IN)
TODAY 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)
TODAY 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
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 8
MONTH TO DATE 225 178 47 184
SINCE JUN 1 521 377 144 462
SINCE JAN 1 555 447 108 542
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 9.6
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 12:00 PM
LOWEST 75 3:00 PM
AVERAGE 81
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 100 1946
MINIMUM TEMPERATURE (F) 67 53 1979
SUNRISE AND SUNSET
JULY 17 2025..........SUNRISE 5:31 AM CDT SUNSET 8:24 PM CDT
JULY 18 2025..........SUNRISE 5:32 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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