637
CDUS43 KLOT 010633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST SAT FEB 01 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 31 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 40 10:56 AM 65 1989 32 8 38
MINIMUM 33 11:59 PM -21 2019 18 15 36
AVERAGE 37 25 12 37
PRECIPITATION (IN)
YESTERDAY 1.24 1.52 1914 0.06 1.18 0.00
MONTH TO DATE 1.98 1.99 -0.01 3.50
SINCE DEC 1 3.91 4.10 -0.19 6.47
SINCE JAN 1 1.98 1.99 -0.01 3.50
SNOWFALL (IN)
YESTERDAY T 9.5 1914 0.4 -0.4 0.0
MONTH TO DATE 4.6 11.3 -6.7 16.1
SINCE DEC 1 7.0 18.9 -11.9 17.3
SINCE JUL 1 9.9 20.9 -11.0 20.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 28 40 -12 28
MONTH TO DATE 1306 1228 78 1193
SINCE DEC 1 2319 2297 22 1991
SINCE JUL 1 3086 3448 -362 2955
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 16.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
LIGHT SNOW
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 8:00 AM
LOWEST 72 9:00 PM
AVERAGE 86
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 56 1968
MINIMUM TEMPERATURE (F) 19 -14 1985
SUNRISE AND SUNSET
FEBRUARY 1 2025......SUNRISE 7:04 AM CST SUNSET 5:07 PM CST
FEBRUARY 2 2025......SUNRISE 7:03 AM CST SUNSET 5:08 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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