Climatological Report (Seasonal) Issued by NWS
000
CXUS53 KLOT 011741
CLSORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1141 AM CST WED DEC 01 2021
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2021 TO 11/30/2021...
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 101 09/02/1953
09/01/1953
LOW -2 11/24/1950
11/29/1872
HIGHEST 89 09/17 MM MM 88 09/03
09/19
09/02
LOWEST 18 11/26 MM MM 28 11/02
AVG. MAXIMUM 64.9 62.2 2.7 63.7
AVG. MINIMUM 48.6 45.5 3.1 46.3
MEAN 56.8 53.9 2.9 55.0
DAYS MAX >= 90 0 1.6 -1.6 MM
DAYS MAX <= 32 1 2.2 -1.2 MM
DAYS MIN <= 32 15 17.3 -2.3 MM
DAYS MIN <= 0 0 0.0 0.0 MM
PRECIPITATION (INCHES)
RECORD
MAXIMUM 19.32 1961
MINIMUM 2.07 1956
TOTALS 7.71 9.04 -1.33 8.55
DAILY AVG. 0.08 0.10 -0.02 0.10
DAYS >= .01 29 29.0 0.0 MM
DAYS >= .10 15 17.2 -2.2 MM
DAYS >= .50 5 5.7 -0.7 MM
DAYS >= 1.00 1 2.0 -1.0 MM
GREATEST
24 HR. TOTAL 1.85 10/24 TO 10/24 1.67 10/22 TO 10/22
DEGREE DAYS
HEATING TOTAL 968 1145 -177 999
SINCE 7/1 968 1151 -183 999
COOLING TOTAL 242 132 110 113
SINCE 1/1 1316 1003 313 1295
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WIND (MPH)
AVERAGE WIND SPEED 9.1
HIGHEST WIND SPEED/DIRECTION 33/030 DATE 10/25
HIGHEST GUST SPEED/DIRECTION 46/050 DATE 10/25
SKY COVER
AVERAGE SKY COVER 0.58
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 13 MIXED PRECIP 0
HEAVY RAIN 10 RAIN 13
LIGHT RAIN 39 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 6 SLEET 1
FOG 30 FOG W/VIS <= 1/4 MILE 0
HAZE 9
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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