166
CDUS43 KLOT 150634
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE SEP 15 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 14 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 72 4:26 PM 101 1939 77 -5 83
MINIMUM 53 5:55 AM 42 1937 60 -7 68
1949
AVERAGE 63 68 -5 76
PRECIPITATION (IN)
YESTERDAY 0.00 2.19 1993 0.09 -0.09 0.00
MONTH TO DATE 0.06 1.35 -1.29 0.26
SINCE SEP 1 0.06 1.35 -1.29 0.26
SINCE JAN 1 32.20 25.38 6.82 25.08
DEGREE DAYS
HEATING
YESTERDAY 2 1 1 0
MONTH TO DATE 2 9 -7 21
SINCE SEP 1 2 9 -7 21
SINCE JUL 1 2 13 -11 23
COOLING
YESTERDAY 0 5 -5 11
MONTH TO DATE 165 86 79 56
SINCE SEP 1 165 86 79 56
SINCE JAN 1 1136 1042 94 1197
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 8.2
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 AM
LOWEST 36 4:00 PM
AVERAGE 65
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 102 1939
MINIMUM TEMPERATURE (F) 59 41 1949
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 6:31 AM CDT SUNSET 7:00 PM CDT
SEPTEMBER 16 2026.....SUNRISE 6:32 AM CDT SUNSET 6:59 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page