799
CDUS43 KLOT 210637
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST SAT DEC 21 2024
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 20 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 35 7:27 AM 67 1877 35 0 45
MINIMUM 21 11:59 PM -9 1963 23 -2 30
AVERAGE 28 29 -1 38
PRECIPITATION (IN)
YESTERDAY 0.08 1.67 1895 0.06 0.02 0.00
MONTH TO DATE 0.58 1.41 -0.83 1.71
SINCE DEC 1 0.58 1.41 -0.83 1.71
SINCE JAN 1 33.57 37.16 -3.59 32.47
SNOWFALL (IN)
YESTERDAY 1.7 11.0 1960 0.2 1.5 0.0
MONTH TO DATE 2.4 4.5 -2.1 0.3
SINCE DEC 1 2.4 4.5 -2.1 0.3
SINCE JUL 1 5.3 6.5 -1.2 3.0
SNOW DEPTH 2
DEGREE DAYS
HEATING
YESTERDAY 37 36 1 27
MONTH TO DATE 704 662 42 538
SINCE DEC 1 704 662 42 538
SINCE JUL 1 1471 1813 -342 1502
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
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WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 14.1
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 6:00 AM
LOWEST 66 4:00 PM
AVERAGE 81
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 62 1967
MINIMUM TEMPERATURE (F) 23 -14 1989
SUNRISE AND SUNSET
DECEMBER 21 2024......SUNRISE 7:16 AM CST SUNSET 4:24 PM CST
DECEMBER 22 2024......SUNRISE 7:17 AM CST SUNSET 4:24 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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