993
CDUS43 KLOT 180633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST WED DEC 18 2024
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 17 2024
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 39 3:04 PM 60 1977 36 3 44
MINIMUM 33 10:19 PM -7 1951 24 9 36
AVERAGE 36 30 6 40
PRECIPITATION (IN)
YESTERDAY 0.00 1.28 1921 0.07 -0.07 T
MONTH TO DATE 0.41 1.22 -0.81 1.71
SINCE DEC 1 0.41 1.22 -0.81 1.71
SINCE JAN 1 33.40 36.97 -3.57 32.47
SNOWFALL (IN)
YESTERDAY 0.0 4.6 1951 0.2 -0.2 0.0
MONTH TO DATE 0.2 3.8 -3.6 0.3
SINCE DEC 1 0.2 3.8 -3.6 0.3
SINCE JUL 1 3.1 5.8 -2.7 3.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 29 35 -6 25
MONTH TO DATE 596 555 41 434
SINCE DEC 1 596 555 41 434
SINCE JUL 1 1363 1706 -343 1398
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1212 1003 209 1145
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 10:00 PM
LOWEST 70 11:00 AM
AVERAGE 79
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 62 1877
MINIMUM TEMPERATURE (F) 24 -11 1983
SUNRISE AND SUNSET
DECEMBER 18 2024......SUNRISE 7:15 AM CST SUNSET 4:22 PM CST
DECEMBER 19 2024......SUNRISE 7:15 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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