024
CDUS43 KLOT 180635
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT FRI SEP 18 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 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 82 2:20 PM 93 1955 76 6 84
MINIMUM 68 5:05 AM 39 1937 58 10 62
AVERAGE 75 67 8 73
PRECIPITATION (IN)
YESTERDAY 1.79R 1.20 1978 0.09 1.70 0.00
2023
MONTH TO DATE 1.90 1.60 0.30 0.26
SINCE SEP 1 1.90 1.60 0.30 0.26
SINCE JAN 1 34.04 25.63 8.41 25.08
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 2 15 -13 21
SINCE SEP 1 2 15 -13 21
SINCE JUL 1 2 19 -17 23
COOLING
YESTERDAY 10 4 6 8
MONTH TO DATE 194 98 96 84
SINCE SEP 1 194 98 96 84
SINCE JAN 1 1165 1054 111 1225
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 5:00 AM
LOWEST 72 1:00 PM
AVERAGE 86
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THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 94 1955
MINIMUM TEMPERATURE (F) 58 39 1929
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 6:34 AM CDT SUNSET 6:55 PM CDT
SEPTEMBER 19 2026.....SUNRISE 6:35 AM CDT SUNSET 6:53 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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