854
CDUS43 KLOT 200637
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST WED DEC 20 2023
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 19 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 33 11:59 PM 64 1877 36 -3 26
MINIMUM 17 7:08 AM -14 1983 24 -7 10
AVERAGE 25 30 -5 18
PRECIPITATION (IN)
YESTERDAY 0.00 2.66 1895 0.07 -0.07 0.00
MONTH TO DATE 1.71 1.35 0.36 2.07
SINCE DEC 1 1.71 1.35 0.36 2.07
SINCE JAN 1 32.47 37.10 -4.63 31.90
SNOWFALL (IN)
YESTERDAY 0.0 8.3 1973 0.2 -0.2 0.0
MONTH TO DATE 0.3 4.3 -4.0 1.9
SINCE DEC 1 0.3 4.3 -4.0 1.9
SINCE JUL 1 3.0 6.3 -3.3 3.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 40 36 4 47
MONTH TO DATE 511 626 -115 591
SINCE DEC 1 511 626 -115 591
SINCE JUL 1 1475 1777 -302 1656
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 16 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 8.9
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 5:00 AM
LOWEST 48 1:00 PM
AVERAGE 60
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 67 1877
MINIMUM TEMPERATURE (F) 23 -9 1963
SUNRISE AND SUNSET
DECEMBER 20 2023......SUNRISE 7:16 AM CST SUNSET 4:23 PM CST
DECEMBER 21 2023......SUNRISE 7:16 AM CST SUNSET 4:23 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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