Climatological Report (Daily)
Issued by NWS
Issued by NWS
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130
CDUS43 KLOT 172131
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
431 PM CDT TUE SEP 17 2024
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 17 2024...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 85 2:51 PM 93 1955 76 9 69
MINIMUM 62 5:24 AM 39 1937 58 4 55
AVERAGE 74 67 7 62
PRECIPITATION (IN)
TODAY 0.00 1.20 1978 0.09 -0.09 1.20
2023
MONTH TO DATE T 1.60 -1.60 2.73
SINCE SEP 1 T 1.60 -1.60 2.73
SINCE JAN 1 29.47 25.63 3.84 28.34
DEGREE DAYS
HEATING
TODAY 0 2 -2 3
MONTH TO DATE 10 15 -5 10
SINCE SEP 1 10 15 -5 10
SINCE JUL 1 10 19 -9 11
COOLING
TODAY 9 4 5 0
MONTH TO DATE 127 98 29 89
SINCE SEP 1 127 98 29 89
SINCE JAN 1 1250 1054 196 1051
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 6:00 AM
LOWEST 25 3:00 PM
AVERAGE 45
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 94 1955
MINIMUM TEMPERATURE (F) 58 39 1929
SUNRISE AND SUNSET
SEPTEMBER 17 2024.....SUNRISE 6:34 AM CDT SUNSET 6:56 PM CDT
SEPTEMBER 18 2024.....SUNRISE 6:35 AM CDT SUNSET 6:54 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$