Climatological Report (Monthly)
Issued by NWS
Issued by NWS
354
CXUS53 KLOT 011348
CLMMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
848 AM CDT SUN SEP 01 2024
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...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 104 08/09/1934
LOW 43 08/29/1965
HIGHEST 99 08/27 100 08/24
LOWEST 56 08/22 54 08/31
AVG. MAXIMUM 84.2 82.7 1.5 82.5
AVG. MINIMUM 66.9 66.4 0.5 66.0
MEAN 75.5 74.5 1.0 74.3
DAYS MAX >= 90 7 4.0 3.0 4
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.95 1987
MINIMUM 0.71 2008
TOTALS 3.74 3.99 -0.25 2.72
DAILY AVG. 0.12 0.13 -0.01 0.09
DAYS >= .01 9 9.9 -0.9 6
DAYS >= .10 6 6.4 -0.4 4
DAYS >= .50 3 2.7 0.3 1
DAYS >= 1.00 1 1.0 0.0 1
GREATEST
24 HR. TOTAL 1.27 08/16 TO 08/16 2.02
DEGREE DAYS
HEATING TOTAL 0 3 -3 1
SINCE 7/1 0 1 -1 MM
COOLING TOTAL 336 299 37 296
SINCE 1/1 1123 956 167 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.0
HIGHEST WIND SPEED/DIRECTION 31/300 DATE 08/16
HIGHEST GUST SPEED/DIRECTION 45/300 DATE 08/16
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.51
NUMBER OF DAYS FAIR 7
NUMBER OF DAYS PC 18
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 64
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 7 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 4
LIGHT RAIN 10 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 6 FOG W/VIS <= 1/4 MILE 0
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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