647
CDUS43 KLOT 180644
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
144 AM CDT SAT APR 18 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 17 2026
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)
YESTERDAY
MAXIMUM 81 3:39 PM 88 1976 60 21 64
MINIMUM 49 5:08 AM 17 1875 41 8 39
AVERAGE 65 50 15 52
PRECIPITATION (IN)
YESTERDAY 0.50 2.01 2013 0.13 0.37 0.05
MONTH TO DATE 5.97 1.94 4.03 1.55
SINCE MAR 1 10.51 4.39 6.12 4.54
SINCE JAN 1 13.20 8.35 4.85 7.04
SNOWFALL (IN)
YESTERDAY 0.0 3.0 2020 0.1 -0.1 0.0
MONTH TO DATE 0.0 1.0 -1.0 T
SINCE MAR 1 1.8 6.5 -4.7 2.8
SINCE JUL 1 34.1 38.1 -4.0 17.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 15 -15 13
MONTH TO DATE 203 304 -101 328
SINCE MAR 1 852 1112 -260 958
SINCE JUL 1 5212 5581 -369 5093
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 16 0 16 0
SINCE MAR 1 17 2 15 0
SINCE JAN 1 17 2 15 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 12.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 51 3:00 PM
AVERAGE 76
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 89 2002
MINIMUM TEMPERATURE (F) 41 23 1875
1983
SUNRISE AND SUNSET
APRIL 18 2026.........SUNRISE 6:06 AM CDT SUNSET 7:36 PM CDT
APRIL 19 2026.........SUNRISE 6:05 AM CDT SUNSET 7:37 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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