256
CDUS43 KLOT 202141
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
441 PM CDT SUN JUL 20 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 20 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 75 12:12 AM 101 1980 85 -10 81
MINIMUM 68 5:15 AM 53 1970 67 1 63
AVERAGE 72 76 -4 72
PRECIPITATION (IN)
TODAY T 3.03 1978 0.12 -0.12 0.00
MONTH TO DATE 3.48 2.29 1.19 5.55
SINCE JUN 1 7.11 6.39 0.72 8.65
SINCE JAN 1 16.61 21.04 -4.43 23.92
SNOWFALL (IN)
TODAY 0.0 T 1978 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
TODAY 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
TODAY 7 11 -4 7
MONTH TO DATE 245 211 34 199
SINCE JUN 1 541 410 131 477
SINCE JAN 1 575 480 95 557
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 11.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 73 2:00 PM
AVERAGE 85
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 103 1901
MINIMUM TEMPERATURE (F) 67 51 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.
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