186
CDUS43 KLOT 200645
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
145 AM CDT THU AUG 20 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 19 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 80 12:37 PM 99 1947 82 -2 78
1983
MINIMUM 65 4:47 AM 51 1992 65 0 69
AVERAGE 73 74 -1 74
PRECIPITATION (IN)
YESTERDAY 0.00 2.07 1921 0.13 -0.13 0.15
MONTH TO DATE 4.23 2.66 1.57 4.68
SINCE JUN 1 14.59 10.47 4.12 12.60
SINCE JAN 1 30.18 25.12 5.06 22.10
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 11 33 -22 13
SINCE JUL 1 0 2 -2 0
COOLING
YESTERDAY 8 9 -1 9
MONTH TO DATE 196 183 13 233
SINCE JUN 1 751 708 43 922
SINCE JAN 1 829 778 51 956
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 6.8
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 2:00 AM
LOWEST 57 11:00 PM
AVERAGE 77
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 1947
MINIMUM TEMPERATURE (F) 65 47 1950
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:05 AM CDT SUNSET 7:44 PM CDT
AUGUST 21 2026........SUNRISE 6:06 AM CDT SUNSET 7:43 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page