536
CDUS43 KLOT 152133
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT FRI MAY 15 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 15 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 74 2:59 PM 94 2025 70 4 94
MINIMUM 53 2:51 AM 35 1895 50 3 57
2016
AVERAGE 64 60 4 76
PRECIPITATION (IN)
TODAY T 2.31 1915 0.14 -0.14 T
MONTH TO DATE 0.30 2.22 -1.92 0.33
SINCE MAR 1 12.03 8.42 3.61 5.98
SINCE JAN 1 14.72 12.38 2.34 8.48
SNOWFALL (IN)
TODAY 0.0 T 2025 0.0 0.0 T
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 1 6 -5 0
MONTH TO DATE 167 123 44 106
SINCE MAR 1 1162 1399 -237 1164
SINCE JUL 1 5522 5868 -346 5299
COOLING
TODAY 0 2 -2 11
MONTH TO DATE 1 18 -17 17
SINCE MAR 1 20 28 -8 25
SINCE JAN 1 20 28 -8 25
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WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 12.7
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 60 10:00 AM
LOWEST 43 1:00 AM
AVERAGE 52
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 94 1962
MINIMUM TEMPERATURE (F) 51 33 1997
SUNRISE AND SUNSET
MAY 15 2026...........SUNRISE 5:31 AM CDT SUNSET 8:05 PM CDT
MAY 16 2026...........SUNRISE 5:30 AM CDT SUNSET 8:06 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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