Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 170650
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
150 AM CDT MON AUG 17 2026
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 16 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 2:46 PM 101 1988 83 3 96
MINIMUM 72 4:11 AM 49 1976 67 5 75
AVERAGE 79 75 4 86
PRECIPITATION (IN)
YESTERDAY MM 3.79 1968 0.14 MM 0.39
MONTH TO DATE 3.85 2.06 1.79 0.74
SINCE JUN 1 17.37 9.62 7.75 12.77
SINCE JAN 1 31.26 22.10 9.16 22.34
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 3 25 -22 9
SINCE JUL 1 0 1 -1 0
COOLING
YESTERDAY 14 10 4 21
MONTH TO DATE 173 167 6 228
SINCE JUN 1 760 742 18 996
SINCE JAN 1 844 824 20 1047
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 8.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 7:00 AM
LOWEST 68 1:00 PM
AVERAGE 84
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 1988
MINIMUM TEMPERATURE (F) 67 48 1976
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 6:01 AM CDT SUNSET 7:48 PM CDT
AUGUST 18 2026........SUNRISE 6:02 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.
$$