Climatological Report (Monthly) Issued by NWS
000
CXUS53 KLOT 011541
CLMMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1041 AM CDT WED NOV 01 2023
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...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 94 10/06/1963
LOW 20 10/24/1981
10/18/1948
10/20/1930
HIGHEST 87 10/03 82 10/22
LOWEST 29 10/31 34 10/20
AVG. MAXIMUM 63.9 63.4 0.5 65.8
AVG. MINIMUM 48.7 46.5 2.2 46.8
MEAN 56.3 54.9 1.4 56.3
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 2 0.9 1.1 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 12.06 1954
MINIMUM 0.20 1964
TOTALS 2.75 3.48 -0.73 2.12
DAILY AVG. 0.09 0.11 -0.02 0.07
DAYS >= .01 14 11.5 2.5 9
DAYS >= .10 8 6.3 1.7 4
DAYS >= .50 0 2.2 -2.2 2
DAYS >= 1.00 0 1.0 -1.0 0
GREATEST
24 HR. TOTAL 0.89 10/13 TO 10/14 0.94
DEGREE DAYS
HEATING TOTAL 313 332 -19 281
SINCE 7/1 329 393 -64 MM
COOLING TOTAL 50 20 30 21
SINCE 1/1 1149 1112 37 MM
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WIND (MPH)
AVERAGE WIND SPEED 9.8
HIGHEST WIND SPEED/DIRECTION 29/060 DATE 10/14
29/330 10/21
HIGHEST GUST SPEED/DIRECTION 39/200 DATE 10/24
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.65
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 12
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 0
LIGHT SNOW 1 SLEET 0
FOG 14 FOG W/VIS <= 1/4 MILE 1
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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