929
CDUS43 KLOT 180640
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT TUE AUG 18 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 17 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 78 4:56 PM 99 1988 83 -5 84
MINIMUM 67 6:05 AM 48 1976 67 0 70
AVERAGE 73 75 -2 77
PRECIPITATION (IN)
YESTERDAY 0.00 2.60 1979 0.14 -0.14 1.58
MONTH TO DATE 3.85 2.20 1.65 2.32
SINCE JUN 1 17.37 9.76 7.61 14.35
SINCE JAN 1 31.26 22.24 9.02 23.92
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 3 25 -22 9
SINCE JUL 1 0 1 -1 0
COOLING
YESTERDAY 8 10 -2 12
MONTH TO DATE 181 177 4 240
SINCE JUN 1 768 752 16 1008
SINCE JAN 1 852 834 18 1059
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 5:00 AM
LOWEST 54 6:00 PM
AVERAGE 71
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 1936
MINIMUM TEMPERATURE (F) 66 49 1963
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:02 AM CDT SUNSET 7:46 PM CDT
AUGUST 19 2026........SUNRISE 6:04 AM CDT SUNSET 7:45 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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