Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 152146
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
446 PM CDT WED OCT 15 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 15 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 63 1:27 AM 88 1947 64 -1 49
MINIMUM 56 10:37 AM 29 1937 47 9 43
AVERAGE 60 55 5 46
PRECIPITATION (IN)
TODAY 0.18 1.66 1967 0.12 0.06 0.37
MONTH TO DATE 1.59 1.72 -0.13 0.51
SINCE SEP 1 2.15 4.49 -2.34 2.40
SINCE JAN 1 26.97 28.52 -1.55 31.87
DEGREE DAYS
HEATING
TODAY 5 10 -5 19
MONTH TO DATE 43 115 -72 56
SINCE SEP 1 64 174 -110 66
SINCE JUL 1 66 178 -112 66
COOLING
TODAY 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 E (70)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 11.0
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 11:00 AM
LOWEST 72 1:00 AM
AVERAGE 84
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 87 1963
MINIMUM TEMPERATURE (F) 46 30 1944
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.
$$