915
CDUS43 KLOT 170633
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT THU SEP 17 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 16 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 75 11:58 AM 93 1931 77 -2 83
MINIMUM 68 11:59 PM 39 1984 59 9 65
AVERAGE 72 68 4 74
PRECIPITATION (IN)
YESTERDAY 0.03 1.70 1980 0.08 -0.05 0.00
MONTH TO DATE 0.11 1.51 -1.40 0.26
SINCE SEP 1 0.11 1.51 -1.40 0.26
SINCE JAN 1 32.25 25.54 6.71 25.08
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 2 13 -11 21
SINCE SEP 1 2 13 -11 21
SINCE JUL 1 2 17 -15 23
COOLING
YESTERDAY 7 4 3 9
MONTH TO DATE 184 94 90 76
SINCE SEP 1 184 94 90 76
SINCE JAN 1 1155 1050 105 1217
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 PM
LOWEST 69 11:00 AM
AVERAGE 81
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THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 93 1955
MINIMUM TEMPERATURE (F) 58 39 1937
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:33 AM CDT SUNSET 6:57 PM CDT
SEPTEMBER 18 2026.....SUNRISE 6:34 AM CDT SUNSET 6:55 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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