261
CDUS43 KLOT 210634
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE OCT 21 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 20 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 66 3:33 PM 86 1953 62 4 79
MINIMUM 41 6:26 AM 20 1930 45 -4 49
AVERAGE 54 53 1 64
PRECIPITATION (IN)
YESTERDAY 0.02 0.86 1934 0.11 -0.09 0.00
MONTH TO DATE 2.74 2.29 0.45 0.51
SINCE SEP 1 3.30 5.06 -1.76 2.40
SINCE JAN 1 28.12 29.09 -0.97 31.87
DEGREE DAYS
HEATING
YESTERDAY 11 12 -1 1
MONTH TO DATE 68 171 -103 102
SINCE SEP 1 89 230 -141 112
SINCE JUL 1 91 234 -143 112
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 65 17 48 16
SINCE SEP 1 269 153 116 235
SINCE JAN 1 1410 1109 301 1358
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WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 12.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 11:00 PM
LOWEST 30 2:00 PM
AVERAGE 57
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THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 87 1953
MINIMUM TEMPERATURE (F) 45 26 1952
SUNRISE AND SUNSET
OCTOBER 21 2025.......SUNRISE 7:10 AM CDT SUNSET 6:00 PM CDT
OCTOBER 22 2025.......SUNRISE 7:12 AM CDT SUNSET 5:59 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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