603
CDUS43 KLOT 212142
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
442 PM CDT THU SEP 21 2023
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 21 2023
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 81 11:42 AM 94 2017 74 7 85
MINIMUM 66 6:01 AM 39 1889 55 11 60
1983
1991
AVERAGE 74 64 10 73
PRECIPITATION (IN)
TODAY 0.04 1.67 1947 0.11 -0.07 0.00
MONTH TO DATE 2.84 2.27 0.57 2.08
SINCE SEP 1 2.84 2.27 0.57 2.08
SINCE JAN 1 27.10 28.98 -1.88 27.19
SNOWFALL (IN)
TODAY 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
TODAY 0 3 -3 0
MONTH TO DATE 13 33 -20 4
SINCE SEP 1 13 33 -20 4
SINCE JUL 1 15 39 -24 4
COOLING
TODAY 9 3 6 8
MONTH TO DATE 112 99 13 154
SINCE SEP 1 112 99 13 154
SINCE JAN 1 1046 971 75 1155
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 3.2
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 2:00 AM
LOWEST 50 12:00 PM
AVERAGE 65
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 94 2017
MINIMUM TEMPERATURE (F) 55 32 1995
SUNRISE AND SUNSET
SEPTEMBER 21 2023.....SUNRISE 6:38 AM CDT SUNSET 6:51 PM CDT
SEPTEMBER 22 2023.....SUNRISE 6:39 AM CDT SUNSET 6:49 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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