669
CDUS43 KLOT 010635
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT THU MAY 01 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 30 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 61 1:53 PM 91 1942 65 -4 74
MINIMUM 44 5:45 AM 30 1873 45 -1 50
AVERAGE 53 55 -2 62
PRECIPITATION (IN)
YESTERDAY T 2.22 2003 0.15 -0.15 T
MONTH TO DATE 2.66 3.75 -1.09 3.47
SINCE MAR 1 5.65 6.20 -0.55 7.06
SINCE JAN 1 8.15 10.16 -2.01 11.21
SNOWFALL (IN)
YESTERDAY 0.0 0.1 1907 0.0 0.0 0.0
MONTH TO DATE T 1.3 -1.3 T
SINCE MAR 1 2.8 6.8 -4.0 1.0
SINCE JUL 1 17.6 38.4 -20.8 22.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 12 10 2 3
MONTH TO DATE 428 468 -40 371
SINCE MAR 1 1058 1276 -218 1013
SINCE JUL 1 5193 5745 -552 4701
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 8 8 0 9
SINCE MAR 1 8 10 -2 9
SINCE JAN 1 8 10 -2 9
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 8.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 3:00 AM
LOWEST 50 1:00 PM
AVERAGE 66
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 90 1951
MINIMUM TEMPERATURE (F) 46 30 1943
SUNRISE AND SUNSET
MAY 1 2025...........SUNRISE 5:47 AM CDT SUNSET 7:51 PM CDT
MAY 2 2025...........SUNRISE 5:46 AM CDT SUNSET 7:52 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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