187
CDUS43 KLOT 200645
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
145 AM CDT THU AUG 20 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 19 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 80 12:55 PM 99 1947 83 -3 80
1983
MINIMUM 66 5:34 AM 49 1933 66 0 72
AVERAGE 73 74 -1 76
PRECIPITATION (IN)
YESTERDAY 0.00 1.39 2007 0.13 -0.13 0.02
MONTH TO DATE 4.37 2.47 1.90 2.81
SINCE JUN 1 17.89 10.03 7.86 14.84
SINCE JAN 1 31.78 22.51 9.27 24.41
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 9 -1 11
MONTH TO DATE 198 196 2 267
SINCE JUN 1 785 771 14 1035
SINCE JAN 1 869 853 16 1086
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 7.1
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 5:00 AM
LOWEST 55 11:00 PM
AVERAGE 78
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 1947
MINIMUM TEMPERATURE (F) 66 47 1950
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:05 AM CDT SUNSET 7:43 PM CDT
AUGUST 21 2026........SUNRISE 6:06 AM CDT SUNSET 7:42 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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