Climatological Report (Daily)
Issued by NWS
Issued by NWS
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017
CDUS43 KLOT 150636
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT WED OCT 15 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 14 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 69 1:06 PM 89 1975 64 5 58
MINIMUM 60 5:44 AM 28 1937 47 13 44
AVERAGE 65 56 9 51
PRECIPITATION (IN)
YESTERDAY 0.00 5.20 2017 0.12 -0.12 0.06
MONTH TO DATE 1.41 1.60 -0.19 0.14
SINCE SEP 1 1.97 4.37 -2.40 2.03
SINCE JAN 1 26.79 28.40 -1.61 31.50
DEGREE DAYS
HEATING
YESTERDAY 0 10 -10 14
MONTH TO DATE 38 105 -67 37
SINCE SEP 1 59 164 -105 47
SINCE JUL 1 61 168 -107 47
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 62 17 45 16
SINCE SEP 1 266 153 113 235
SINCE JAN 1 1407 1109 298 1358
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 9.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 65 12:00 PM
AVERAGE 78
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 88 1947
MINIMUM TEMPERATURE (F) 47 29 1937
SUNRISE AND SUNSET
OCTOBER 15 2025.......SUNRISE 7:04 AM CDT SUNSET 6:09 PM CDT
OCTOBER 16 2025.......SUNRISE 7:05 AM CDT SUNSET 6:08 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$