Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 010648
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
148 AM CDT THU OCT 01 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 30 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 70 1:19 AM 92 1971 70 0 82
MINIMUM 60 8:09 AM 29 1984 51 9 63
AVERAGE 65 60 5 73
PRECIPITATION (IN)
YESTERDAY 0.74 1.27 1896 0.10 0.64 0.00
MONTH TO DATE 3.70 3.19 0.51 0.49
SINCE SEP 1 3.70 3.19 0.51 0.49
SINCE JAN 1 34.67 29.90 4.77 22.94
SNOWFALL (IN)
YESTERDAY 0.0 T 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 0 6 -6 0
MONTH TO DATE 27 76 -49 32
SINCE SEP 1 27 76 -49 32
SINCE JUL 1 27 82 -55 37
COOLING
YESTERDAY 0 2 -2 8
MONTH TO DATE 187 116 71 166
SINCE SEP 1 187 116 71 166
SINCE JAN 1 1113 988 125 1158
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 8:00 AM
LOWEST 49 12:00 AM
AVERAGE 73
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 92 1971
MINIMUM TEMPERATURE (F) 51 32 1886
1974
SUNRISE AND SUNSET
OCTOBER 1 2026.......SUNRISE 6:49 AM CDT SUNSET 6:33 PM CDT
OCTOBER 2 2026.......SUNRISE 6:50 AM CDT SUNSET 6:31 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$