Climatological Report (Daily)
Issued by NWS
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663
CDUS43 KLOT 130633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT MON OCT 13 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 12 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 2:32 PM 84 1956 65 4 68
1960
2008
MINIMUM 48 5:43 AM 28 1987 47 1 60
1988
AVERAGE 59 56 3 64
PRECIPITATION (IN)
YESTERDAY 0.00 1.40 1973 0.12 -0.12 0.00
MONTH TO DATE 1.36 1.35 0.01 0.01
SINCE SEP 1 1.85 4.54 -2.69 1.33
SINCE JAN 1 24.30 31.25 -6.95 28.19
SNOWFALL (IN)
YESTERDAY 0.0 0.3 2006 0.0 0.0 0.0
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 6 10 -4 1
MONTH TO DATE 44 98 -54 25
SINCE SEP 1 76 175 -99 40
SINCE JUL 1 81 181 -100 40
COOLING
YESTERDAY 0 1 -1 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 13 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 4:00 AM
LOWEST 45 2:00 PM
AVERAGE 68
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 88 1975
MINIMUM TEMPERATURE (F) 46 25 1988
SUNRISE AND SUNSET
OCTOBER 13 2025.......SUNRISE 7:02 AM CDT SUNSET 6:13 PM CDT
OCTOBER 14 2025.......SUNRISE 7:03 AM CDT SUNSET 6:11 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$