Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 170632
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT FRI OCT 17 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 16 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 68 2:02 PM 87 1963 63 5 58
MINIMUM 56 6:46 AM 30 1944 46 10 38
AVERAGE 62 55 7 48
PRECIPITATION (IN)
YESTERDAY 0.00 0.81 2006 0.12 -0.12 0.00
MONTH TO DATE 1.59 1.84 -0.25 0.51
SINCE SEP 1 2.15 4.61 -2.46 2.40
SINCE JAN 1 26.97 28.64 -1.67 31.87
DEGREE DAYS
HEATING
YESTERDAY 3 10 -7 17
MONTH TO DATE 46 125 -79 73
SINCE SEP 1 67 184 -117 83
SINCE JUL 1 69 188 -119 83
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 15 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 7.2
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 4:00 AM
LOWEST 46 10:00 PM
AVERAGE 64
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 86 1950
MINIMUM TEMPERATURE (F) 46 26 1948
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 7:06 AM CDT SUNSET 6:06 PM CDT
OCTOBER 18 2025.......SUNRISE 7:07 AM CDT SUNSET 6:04 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$