Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 300643
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
143 AM CDT SAT AUG 30 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 29 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 70 1:35 PM 98 1953 81 -11 88
MINIMUM 55 4:23 AM 43 1965 63 -8 71
1982
AVERAGE 63 72 -9 80
PRECIPITATION (IN)
YESTERDAY T 2.02 1955 0.13 -0.13 0.00
MONTH TO DATE 5.03 3.97 1.06 2.32
SINCE JUN 1 12.95 11.78 1.17 11.31
SINCE JAN 1 22.45 26.43 -3.98 26.58
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 2 0 2 0
MONTH TO DATE 5 0 5 0
SINCE JUN 1 18 33 -15 6
SINCE JUL 1 5 2 3 0
COOLING
YESTERDAY 0 7 -7 15
MONTH TO DATE 266 263 3 293
SINCE JUN 1 955 788 167 887
SINCE JAN 1 989 858 131 967
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 4:00 AM
LOWEST 54 11:00 AM
AVERAGE 67
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 96 1925
1953
2013
MINIMUM TEMPERATURE (F) 63 47 1915
1946
SUNRISE AND SUNSET
AUGUST 30 2025........SUNRISE 6:15 AM CDT SUNSET 7:28 PM CDT
AUGUST 31 2025........SUNRISE 6:16 AM CDT SUNSET 7:26 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$