972
CDUS43 KLOT 182134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT MON MAY 18 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 18 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 79 2:13 PM 93 1962 71 8 64
MINIMUM 68 10:15 AM 34 2002 51 17 45
AVERAGE 74 61 13 55
PRECIPITATION (IN)
TODAY 0.39 1.36 1926 0.14 0.25 0.00
MONTH TO DATE 0.73 2.66 -1.93 0.33
SINCE MAR 1 12.46 8.86 3.60 5.98
SINCE JAN 1 15.15 12.82 2.33 8.48
SNOWFALL (IN)
TODAY 0.0 T 1894 0.0 0.0 0.0
1938
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 0 6 -6 10
MONTH TO DATE 167 141 26 118
SINCE MAR 1 1162 1417 -255 1176
SINCE JUL 1 5522 5886 -364 5311
COOLING
TODAY 9 2 7 0
MONTH TO DATE 31 24 7 26
SINCE MAR 1 50 34 16 34
SINCE JAN 1 50 34 16 34
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 13.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 11:00 AM
LOWEST 54 1:00 AM
AVERAGE 74
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 94 1975
1977
MINIMUM TEMPERATURE (F) 52 36 1894
1993
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 5:28 AM CDT SUNSET 8:08 PM CDT
MAY 19 2026...........SUNRISE 5:27 AM CDT SUNSET 8:09 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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