Climatological Report (Daily)
Issued by NWS
Issued by NWS
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015
CDUS43 KLOT 182154
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
454 PM CDT FRI SEP 18 2026
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 18 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 72 11:05 AM 94 1955 76 -4 88
MINIMUM 66 5:53 AM 39 1929 58 8 62
AVERAGE 69 67 2 75
PRECIPITATION (IN)
TODAY T 3.15 2015 0.09 -0.09 0.00
MONTH TO DATE 1.90 1.69 0.21 0.26
SINCE SEP 1 1.90 1.69 0.21 0.26
SINCE JAN 1 34.04 25.72 8.32 25.08
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 2 17 -15 21
SINCE SEP 1 2 17 -15 21
SINCE JUL 1 2 21 -19 23
COOLING
TODAY 4 4 0 10
MONTH TO DATE 198 102 96 94
SINCE SEP 1 198 102 96 94
SINCE JAN 1 1169 1058 111 1235
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 12.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 3:00 AM
LOWEST 61 3:00 PM
AVERAGE 71
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1955
MINIMUM TEMPERATURE (F) 58 37 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.
$$