771
CDUS43 KLOT 160633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SAT SEP 16 2023
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 15 2023
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 3:51 PM 99 1939 76 3 81
MINIMUM 54 3:07 AM 39 2007 58 -4 60
AVERAGE 67 67 0 71
PRECIPITATION (IN)
YESTERDAY 0.00 1.38 1936 0.10 -0.10 0.00
MONTH TO DATE 0.89 1.63 -0.74 1.48
SINCE SEP 1 0.89 1.63 -0.74 1.48
SINCE JAN 1 25.15 28.34 -3.19 26.59
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 SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 5 16 -11 4
SINCE SEP 1 5 16 -11 4
SINCE JUL 1 7 22 -15 4
COOLING
YESTERDAY 2 4 -2 6
MONTH TO DATE 96 79 17 99
SINCE SEP 1 96 79 17 99
SINCE JAN 1 1030 951 79 1100
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WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 4:00 AM
LOWEST 29 3:00 PM
AVERAGE 58
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1931
1955
MINIMUM TEMPERATURE (F) 57 37 1984
SUNRISE AND SUNSET
SEPTEMBER 16 2023.....SUNRISE 6:32 AM CDT SUNSET 7:00 PM CDT
SEPTEMBER 17 2023.....SUNRISE 6:34 AM CDT SUNSET 6:58 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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