Climatological Report (Daily)
Issued by NWS
Issued by NWS
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617
CDUS43 KLOT 200645
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
145 AM CDT SUN JUL 20 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 19 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 83 5:14 PM 101 1930 85 -2 80
MINIMUM 73 5:29 AM 50 1873 67 6 60
AVERAGE 78 76 2 70
PRECIPITATION (IN)
YESTERDAY 0.19 1.96 1963 0.12 0.07 0.00
MONTH TO DATE 3.48 2.17 1.31 5.55
SINCE JUN 1 7.11 6.27 0.84 8.65
SINCE JAN 1 16.61 20.92 -4.31 23.92
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 T
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 13 31 -18 6
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 13 11 2 5
MONTH TO DATE 238 200 38 192
SINCE JUN 1 534 399 135 470
SINCE JAN 1 568 469 99 550
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 11:00 AM
LOWEST 65 5:00 PM
AVERAGE 81
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 101 1980
MINIMUM TEMPERATURE (F) 67 53 1970
SUNRISE AND SUNSET
JULY 20 2025..........SUNRISE 5:34 AM CDT SUNSET 8:22 PM CDT
JULY 21 2025..........SUNRISE 5:35 AM CDT SUNSET 8:21 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$