857
CDUS43 KLOT 121701
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1201 PM CDT WED MAR 12 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 11 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 57 12:00 AM 74 1990 45 12 67
MINIMUM 36 10:25 PM 3 1979 30 6 33
AVERAGE 47 37 10 50
PRECIPITATION (IN)
YESTERDAY 0.00 0.92 1957 0.07 -0.07 0.00
MONTH TO DATE 1.15 0.85 0.30 1.73
SINCE MAR 1 1.15 0.85 0.30 1.73
SINCE JAN 1 3.65 4.81 -1.16 5.88
SNOWFALL (IN)
YESTERDAY 0.0 4.4 1941 0.2 -0.2 0.0
MONTH TO DATE T 2.8 -2.8 0.0
SINCE MAR 1 T 2.8 -2.8 0.0
SINCE JUL 1 14.8 34.4 -19.6 21.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 18 28 -10 15
MONTH TO DATE 275 325 -50 212
SINCE MAR 1 275 325 -50 212
SINCE JUL 1 4410 4794 -384 3900
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 39 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 49 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 16.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 11:00 PM
LOWEST 40 2:00 PM
AVERAGE 55
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 81 1990
MINIMUM TEMPERATURE (F) 30 1 1948
SUNRISE AND SUNSET
MARCH 12 2025.........SUNRISE 7:08 AM CDT SUNSET 6:55 PM CDT
MARCH 13 2025.........SUNRISE 7:06 AM CDT SUNSET 6:56 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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