570
CDUS43 KLOT 180655
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
155 AM CDT MON MAY 18 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR MAY 17 2026
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)
YESTERDAY
MAXIMUM 87 2:38 PM 94 1962 72 15 72
MINIMUM 67 5:33 AM 36 1929 52 15 55
1973
AVERAGE 77 62 15 64
PRECIPITATION (IN)
YESTERDAY 0.00 3.67 2020 0.13 -0.13 T
MONTH TO DATE 0.38 2.25 -1.87 0.60
SINCE MAR 1 10.11 7.70 2.41 7.18
SINCE JAN 1 12.67 10.64 2.03 8.54
DEGREE DAYS
HEATING
YESTERDAY 0 5 -5 1
MONTH TO DATE 164 124 40 93
SINCE MAR 1 1113 1351 -238 1070
SINCE JUL 1 5323 5674 -351 5008
COOLING
YESTERDAY 12 2 10 0
MONTH TO DATE 21 26 -5 38
SINCE MAR 1 42 37 5 51
SINCE JAN 1 42 37 5 51
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 14.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 3:00 AM
LOWEST 42 4:00 PM
AVERAGE 65
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 93 1934
1962
1996
MINIMUM TEMPERATURE (F) 53 34 2002
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 5:28 AM CDT SUNSET 8:07 PM CDT
MAY 19 2026...........SUNRISE 5:27 AM CDT SUNSET 8:08 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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