408
CDUS43 KLOT 170636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT MON MAR 17 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 16 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 41 12:00 AM 82 2012 47 -6 58
MINIMUM 30 11:59 PM -1 1900 31 -1 40
AVERAGE 36 39 -3 49
PRECIPITATION (IN)
YESTERDAY 0.21 1.64 1876 0.07 0.14 0.00
MONTH TO DATE 1.82 1.22 0.60 2.16
SINCE MAR 1 1.82 1.22 0.60 2.16
SINCE JAN 1 4.32 5.18 -0.86 6.31
SNOWFALL (IN)
YESTERDAY 1.1 6.0 1960 0.1 1.0 0.0
MONTH TO DATE 1.1 3.7 -2.6 0.0
SINCE MAR 1 1.1 3.7 -2.6 0.0
SINCE JUL 1 15.9 35.3 -19.4 21.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 29 26 3 16
MONTH TO DATE 356 458 -102 272
SINCE MAR 1 356 458 -102 272
SINCE JUL 1 4491 4927 -436 3960
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
HEAVY SNOW
SNOW
LIGHT SNOW
SLEET
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 8:00 AM
LOWEST 59 6:00 PM
AVERAGE 76
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 48 82 2012
MINIMUM TEMPERATURE (F) 31 -1 1900
SUNRISE AND SUNSET
MARCH 17 2025.........SUNRISE 7:00 AM CDT SUNSET 7:01 PM CDT
MARCH 18 2025.........SUNRISE 6:58 AM CDT SUNSET 7:02 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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