Climatological Report (Seasonal) Issued by NWS
000
CXUS53 KLOT 011559
CLSORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1059 AM CDT WED SEP 01 2021
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...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2021 TO 8/31/2021...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2021
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 105 07/24/1934
LOW 35 06/04/1945
HIGHEST 95 08/24 MM MM 97 08/24
LOWEST 50 06/01 MM MM 52 06/15
06/13
AVG. MAXIMUM 84.1 82.5 1.6 86.2
AVG. MINIMUM 66.5 64.1 2.4 67.1
MEAN 75.3 73.3 2.0 76.7
DAYS MAX >= 90 21 14.3 6.7 30
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 23.48 1987
MINIMUM 3.16 1894
TOTALS 13.19 12.06 1.13 7.75
DAILY AVG. 0.15 0.13 0.02 0.09
DAYS >= .01 29 30.2 -1.2 24
DAYS >= .10 21 19.0 2.0 15
DAYS >= .50 8 7.9 0.1 4
DAYS >= 1.00 5 3.3 1.7 2
GREATEST
24 HR. TOTAL 1.91 08/24 TO 08/24 1.55
DEGREE DAYS
HEATING TOTAL 3 37 -34 12
SINCE 7/1 0 2 -2 0
COOLING TOTAL 973 802 171 1108
SINCE 1/1 1074 872 202 1182
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WIND (MPH)
AVERAGE WIND SPEED 8.1
HIGHEST WIND SPEED/DIRECTION 39/010 DATE 08/24
HIGHEST GUST SPEED/DIRECTION 57/290 DATE 08/10
SKY COVER
AVERAGE SKY COVER 0.55
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 26 MIXED PRECIP 0
HEAVY RAIN 18 RAIN 19
LIGHT RAIN 38 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 32 FOG W/VIS <= 1/4 MILE 0
HAZE 15
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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