827
CDUS43 KLOT 212142
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
442 PM CDT WED MAY 21 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 21 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 52 2:59 PM 92 1934 72 -20 89
1977
MINIMUM 48 8:23 AM 31 2002 52 -4 61
AVERAGE 50 62 -12 75
PRECIPITATION (IN)
TODAY 0.03 1.96 2018 0.15 -0.12 0.00
MONTH TO DATE 0.98 3.11 -2.13 3.05
SINCE MAR 1 6.63 9.31 -2.68 10.11
SINCE JAN 1 9.13 13.27 -4.14 14.26
SNOWFALL (IN)
TODAY 0.0 T 1969 0.0 0.0 0.0
2004
MONTH TO DATE T 0.0 0.0 0.0
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
TODAY 15 5 10 0
MONTH TO DATE 162 157 5 54
SINCE MAR 1 1220 1433 -213 1067
SINCE JUL 1 5355 5902 -547 4755
COOLING
TODAY 0 2 -2 10
MONTH TO DATE 26 30 -4 51
SINCE MAR 1 34 40 -6 60
SINCE JAN 1 34 40 -6 60
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 10.1
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 12:00 AM
LOWEST 83 2:00 PM
AVERAGE 90
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 94 1925
MINIMUM TEMPERATURE (F) 53 36 2006
SUNRISE AND SUNSET
MAY 21 2025...........SUNRISE 5:25 AM CDT SUNSET 8:12 PM CDT
MAY 22 2025...........SUNRISE 5:25 AM CDT SUNSET 8:12 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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