127
CDUS43 KLOT 180640
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT MON SEP 18 2023
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 17 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 64 12:51 PM 93 1955 75 -11 85
MINIMUM 57 11:59 PM 37 1984 57 0 68
AVERAGE 61 66 -5 77
PRECIPITATION (IN)
YESTERDAY 1.60 2.42 1927 0.11 1.49 0.00
MONTH TO DATE 2.52 1.84 0.68 1.48
SINCE SEP 1 2.52 1.84 0.68 1.48
SINCE JAN 1 26.78 28.55 -1.77 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 4 3 1 0
MONTH TO DATE 9 21 -12 4
SINCE SEP 1 9 21 -12 4
SINCE JUL 1 11 27 -16 4
COOLING
YESTERDAY 0 4 -4 12
MONTH TO DATE 96 87 9 119
SINCE SEP 1 96 87 9 119
SINCE JAN 1 1030 959 71 1120
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 10.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 77 5:00 PM
AVERAGE 87
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 94 1955
MINIMUM TEMPERATURE (F) 56 40 1889
1901
1903
SUNRISE AND SUNSET
SEPTEMBER 18 2023.....SUNRISE 6:35 AM CDT SUNSET 6:56 PM CDT
SEPTEMBER 19 2023.....SUNRISE 6:36 AM CDT SUNSET 6:54 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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