678
CDUS43 KLOT 212154
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
454 PM CDT THU MAY 21 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR MAY 21 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 61 2:45 PM 94 1934 73 -12 54
MINIMUM 50 6:02 AM 34 2002 54 -4 50
AVERAGE 56 63 -7 52
PRECIPITATION (IN)
TODAY 0.00 1.79 1982 0.14 -0.14 0.06
MONTH TO DATE 0.88 2.80 -1.92 1.16
SINCE MAR 1 10.61 8.25 2.36 7.74
SINCE JAN 1 13.17 11.19 1.98 9.10
DEGREE DAYS
HEATING
TODAY 9 5 4 13
MONTH TO DATE 182 144 38 141
SINCE MAR 1 1131 1371 -240 1118
SINCE JUL 1 5341 5694 -353 5056
COOLING
TODAY 0 3 -3 0
MONTH TO DATE 34 36 -2 38
SINCE MAR 1 55 47 8 51
SINCE JAN 1 55 47 8 51
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 14.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 9:00 AM
LOWEST 46 1:00 AM
AVERAGE 59
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 93 1977
MINIMUM TEMPERATURE (F) 54 40 1929
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:26 AM CDT SUNSET 8:10 PM CDT
MAY 22 2026...........SUNRISE 5:25 AM CDT SUNSET 8:11 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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