679
CDUS43 KLOT 212154
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
454 PM CDT THU MAY 21 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 21 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 58 2:59 PM 92 1934 72 -14 52
1977
MINIMUM 47 4:46 AM 31 2002 52 -5 48
AVERAGE 53 62 -9 50
PRECIPITATION (IN)
TODAY 0.00 1.96 2018 0.15 -0.15 0.06
MONTH TO DATE 0.73 3.11 -2.38 1.01
SINCE MAR 1 12.46 9.31 3.15 6.66
SINCE JAN 1 15.15 13.27 1.88 9.16
SNOWFALL (IN)
TODAY 0.0 T 1969 0.0 0.0 0.0
2004
MONTH TO DATE 0.0 0.0 0.0 T
SINCE MAR 1 1.8 6.8 -5.0 2.8
SINCE JUL 1 34.1 38.4 -4.3 17.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 12 5 7 15
MONTH TO DATE 190 157 33 162
SINCE MAR 1 1185 1433 -248 1220
SINCE JUL 1 5545 5902 -357 5355
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 34 30 4 26
SINCE MAR 1 53 40 13 34
SINCE JAN 1 53 40 13 34
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 12.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 8:00 AM
LOWEST 52 2:00 AM
AVERAGE 60
......................................................
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 2026...........SUNRISE 5:26 AM CDT SUNSET 8:11 PM CDT
MAY 22 2026...........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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