163
CDUS43 KLOT 130637
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
137 AM CDT SAT SEP 13 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 12 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 85 3:51 PM 96 1939 78 7 87
1952
MINIMUM 62 5:21 AM 44 1940 60 2 65
1955
AVERAGE 74 69 5 76
PRECIPITATION (IN)
YESTERDAY 0.00 2.43 1961 0.08 -0.08 0.00
MONTH TO DATE 0.06 1.18 -1.12 T
SINCE SEP 1 0.06 1.18 -1.12 T
SINCE JAN 1 24.88 25.21 -0.33 29.47
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 21 7 14 10
SINCE SEP 1 21 7 14 10
SINCE JUL 1 23 11 12 10
COOLING
YESTERDAY 9 5 4 11
MONTH TO DATE 38 76 -38 65
SINCE SEP 1 38 76 -38 65
SINCE JAN 1 1179 1032 147 1188
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 4:00 AM
LOWEST 31 2:00 PM
AVERAGE 59
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 99 1939
MINIMUM TEMPERATURE (F) 60 40 1953
SUNRISE AND SUNSET
SEPTEMBER 13 2025.....SUNRISE 6:29 AM CDT SUNSET 7:03 PM CDT
SEPTEMBER 14 2025.....SUNRISE 6:30 AM CDT SUNSET 7:02 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