Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 180636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT FRI APR 18 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 17 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 64 1:38 PM 88 1976 60 4 68
MINIMUM 39 12:32 AM 17 1875 41 -2 53
AVERAGE 52 50 2 61
PRECIPITATION (IN)
YESTERDAY 0.05 2.01 2013 0.13 -0.08 0.19
MONTH TO DATE 1.55 1.94 -0.39 1.94
SINCE MAR 1 4.54 4.39 0.15 5.53
SINCE JAN 1 7.04 8.35 -1.31 9.68
SNOWFALL (IN)
YESTERDAY 0.0 3.0 2020 0.1 -0.1 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
YESTERDAY 13 15 -2 4
MONTH TO DATE 328 304 24 215
SINCE MAR 1 958 1112 -154 857
SINCE JUL 1 5093 5581 -488 4545
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 3
SINCE MAR 1 0 2 -2 3
SINCE JAN 1 0 2 -2 3
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 14.3
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 4:00 PM
LOWEST 32 1:00 PM
AVERAGE 59
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 89 2002
MINIMUM TEMPERATURE (F) 41 23 1875
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.
$$