Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 180640
CLIUGN
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT TUE AUG 18 2026
...................................
...THE WAUKEGAN IL CLIMATE SUMMARY FOR AUGUST 17 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 2000 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 76 4:39 PM 87 2002 80 -4 81
2016
MINIMUM 63 8:58 PM 52 2013 61 2 71
AVERAGE 70 71 -1 76
PRECIPITATION (IN)
YESTERDAY 0.00 0.66 2000 0.12 -0.12 0.07
MONTH TO DATE 3.82 1.97 1.85 0.92
SINCE JUN 1 13.91 9.90 4.01 10.72
SINCE JAN 1 28.66 22.74 5.92 19.15
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 52 86 -34 39
SINCE JUL 1 4 13 -9 3
COOLING
YESTERDAY 5 6 -1 11
MONTH TO DATE 119 110 9 179
SINCE JUN 1 493 441 52 714
SINCE JAN 1 517 473 44 723
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 6.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 62 5:00 PM
AVERAGE 80
..........................................................
THE WAUKEGAN IL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 87 2016
MINIMUM TEMPERATURE (F) 61 51 2012
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:02 AM CDT SUNSET 7:48 PM CDT
AUGUST 19 2026........SUNRISE 6:03 AM CDT SUNSET 7:46 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$