542
CDUS43 KLOT 160632
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1232 AM CST SAT DEC 16 2023
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 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
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 53 3:09 PM 66 2021 37 16 38
MINIMUM 35 7:29 AM -12 1901 25 10 31
AVERAGE 44 30 14 35
PRECIPITATION (IN)
YESTERDAY 0.00 1.10 1971 0.06 -0.06 0.18
MONTH TO DATE 1.30 1.09 0.21 2.05
SINCE DEC 1 1.30 1.09 0.21 2.05
SINCE JAN 1 32.06 36.84 -4.78 31.88
SNOWFALL (IN)
YESTERDAY 0.0 8.0 1987 0.2 -0.2 0.4
MONTH TO DATE 0.3 3.3 -3.0 0.6
SINCE DEC 1 0.3 3.3 -3.0 0.6
SINCE JUL 1 3.0 5.3 -2.3 1.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 34 -13 30
MONTH TO DATE 388 485 -97 420
SINCE DEC 1 388 485 -97 420
SINCE JUL 1 1352 1636 -284 1485
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1145 1003 142 1174
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WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 5:00 AM
LOWEST 36 1:00 PM
AVERAGE 58
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 66 2021
MINIMUM TEMPERATURE (F) 24 -12 1951
SUNRISE AND SUNSET
DECEMBER 16 2023......SUNRISE 7:13 AM CST SUNSET 4:21 PM CST
DECEMBER 17 2023......SUNRISE 7:14 AM CST SUNSET 4:22 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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