993
CDUS43 KLOT 170640
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1240 AM CST SUN DEC 17 2023
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 16 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 46 1:29 AM 66 2021 36 10 31
MINIMUM 41 11:04 AM -12 1951 24 17 26
AVERAGE 44 30 14 29
PRECIPITATION (IN)
YESTERDAY 0.41 1.67 1921 0.06 0.35 0.02
MONTH TO DATE 1.71 1.15 0.56 2.07
SINCE DEC 1 1.71 1.15 0.56 2.07
SINCE JAN 1 32.47 36.90 -4.43 31.90
SNOWFALL (IN)
YESTERDAY 0.0 4.8 2008 0.3 -0.3 1.3
MONTH TO DATE 0.3 3.6 -3.3 1.9
SINCE DEC 1 0.3 3.6 -3.3 1.9
SINCE JUL 1 3.0 5.6 -2.6 3.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 35 -14 36
MONTH TO DATE 409 520 -111 456
SINCE DEC 1 409 520 -111 456
SINCE JUL 1 1373 1671 -298 1521
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 SE (140)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 11:00 PM
LOWEST 51 12:00 AM
AVERAGE 74
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 60 1977
MINIMUM TEMPERATURE (F) 24 -7 1951
SUNRISE AND SUNSET
DECEMBER 17 2023......SUNRISE 7:14 AM CST SUNSET 4:22 PM CST
DECEMBER 18 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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