529
CDUS43 KLOT 182133
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT FRI APR 18 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 18 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 76 2:59 PM 89 2002 60 16 58
MINIMUM 61 3:27 AM 23 1875 41 20 47
1983
AVERAGE 69 50 19 53
PRECIPITATION (IN)
TODAY T 3.83 1975 0.14 -0.14 0.10
MONTH TO DATE 1.55 2.08 -0.53 2.04
SINCE MAR 1 4.54 4.53 0.01 5.63
SINCE JAN 1 7.04 8.49 -1.45 9.78
SNOWFALL (IN)
TODAY 0.0 0.6 2011 0.0 0.0 0.0
MONTH TO DATE T 1.0 -1.0 T
SINCE MAR 1 2.8 6.5 -3.7 1.0
SINCE JUL 1 17.6 38.1 -20.5 22.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 15 -15 12
MONTH TO DATE 328 319 9 227
SINCE MAR 1 958 1127 -169 869
SINCE JUL 1 5093 5596 -503 4557
COOLING
TODAY 4 0 4 0
MONTH TO DATE 4 0 4 3
SINCE MAR 1 4 2 2 3
SINCE JAN 1 4 2 2 3
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 16.0
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 63 10:00 AM
LOWEST 42 12:00 AM
AVERAGE 53
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 86 1985
MINIMUM TEMPERATURE (F) 41 22 1983
SUNRISE AND SUNSET
APRIL 18 2025.........SUNRISE 6:06 AM CDT SUNSET 7:36 PM CDT
APRIL 19 2025.........SUNRISE 6:04 AM CDT SUNSET 7:38 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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