654
CDUS43 KLOT 170731
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
231 AM CDT FRI APR 17 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 16 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 74 4:21 PM 87 2002 59 15 51
MINIMUM 49 11:59 PM 18 1875 40 9 35
AVERAGE 62 50 12 43
PRECIPITATION (IN)
YESTERDAY 0.19 1.97 1921 0.13 0.06 0.00
MONTH TO DATE 5.47 1.81 3.66 1.50
SINCE MAR 1 10.01 4.26 5.75 4.49
SINCE JAN 1 12.70 8.22 4.48 6.99
SNOWFALL (IN)
YESTERDAY MM 5.4 1961 0.0 MM 0.0
MONTH TO DATE 0.0 0.9 -0.9 T
SINCE MAR 1 1.8 6.4 -4.6 2.8
SINCE JUL 1 34.1 38.0 -3.9 17.6
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 3 15 -12 22
MONTH TO DATE 203 289 -86 315
SINCE MAR 1 852 1097 -245 945
SINCE JUL 1 5212 5566 -354 5080
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 18 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 9.2
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 11:00 PM
LOWEST 48 4:00 PM
AVERAGE 72
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 88 1976
MINIMUM TEMPERATURE (F) 41 17 1875
SUNRISE AND SUNSET
APRIL 17 2026.........SUNRISE 6:08 AM CDT SUNSET 7:35 PM CDT
APRIL 18 2026.........SUNRISE 6:06 AM CDT SUNSET 7:36 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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