Climatological Report (Daily)
Issued by NWS
Issued by NWS
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016
CDUS43 KLOT 150636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT WED OCT 15 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 14 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 69 1:12 PM 89 1975 64 5 57
MINIMUM 55 5:40 AM 27 1872 46 9 41
AVERAGE 62 55 7 49
PRECIPITATION (IN)
YESTERDAY 0.00 4.19 2017 0.11 -0.11 0.02
MONTH TO DATE 1.36 1.57 -0.21 0.03
SINCE SEP 1 1.85 4.76 -2.91 1.35
SINCE JAN 1 24.30 31.47 -7.17 28.21
SNOWFALL (IN)
YESTERDAY 0.0 T 1898 0.0 0.0 0.0
1986
1992
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 3 11 -8 16
MONTH TO DATE 50 119 -69 48
SINCE SEP 1 82 196 -114 63
SINCE JUL 1 87 202 -115 63
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 55 12 43 13
SINCE SEP 1 221 128 93 203
SINCE JAN 1 1213 1000 213 1189
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 AM
LOWEST 59 1:00 PM
AVERAGE 76
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 88 1947
MINIMUM TEMPERATURE (F) 46 28 1876
SUNRISE AND SUNSET
OCTOBER 15 2025.......SUNRISE 7:04 AM CDT SUNSET 6:09 PM CDT
OCTOBER 16 2025.......SUNRISE 7:06 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.
$$