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771
CXUS53 KLOT 011622
CLSORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1122 AM CDT SUN JUN 01 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2025 TO 5/31/2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 98 05/31/1934
LOW -12 03/04/1873
HIGHEST 94 05/15 89 05/21
LOWEST 18 03/02 24 03/18
AVG. MAXIMUM 60.7 58.8 1.9 63.2
AVG. MINIMUM 41.5 40.6 0.9 44.5
MEAN 51.1 49.7 1.4 53.8
DAYS MAX >= 90 1 1.0 0.0 0
DAYS MAX <= 32 0 3.0 -3.0 0
DAYS MIN <= 32 13 26.1 -13.1 14
DAYS MIN <= 0 0 0.2 -0.2 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 17.51 1983
MINIMUM 2.73 1887
TOTALS 7.00 10.69 -3.69 11.12
DAILY AVG. 0.08 0.12 -0.04 0.12
DAYS >= .01 29 35.6 -6.6 37
DAYS >= .10 19 20.7 -1.7 28
DAYS >= .50 5 6.9 -1.9 7
DAYS >= 1.00 1 2.3 -1.3 0
GREATEST
24 HR. TOTAL 1.25 04/02 TO 04/02 0.91
SNOWFALL (INCHES)
RECORDS
TOTAL 29.7 1926
TOTALS 2.8 6.8 -4.0 1.0
SINCE 7/1 17.6 38.4 -20.8 22.2
DAYS >= 1.0 2 2.0 0.0 1
GREATEST
SNOW DEPTH 2 03/20 0
24 HR TOTAL 1.7 03/20 TO 03/20 1.0
DEGREE DAYS
HEATING TOTAL 1293 1474 -181 1081
SINCE 7/1 5428 5943 -515 4769
COOLING TOTAL 34 70 -36 80
SINCE 1/1 34 70 -36 80
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WIND (MPH)
AVERAGE WIND SPEED 10.8
HIGHEST WIND SPEED/DIRECTION 39/030 DATE 03/11
HIGHEST GUST SPEED/DIRECTION 50/200 DATE 05/15
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.66
NUMBER OF DAYS FAIR 12
NUMBER OF DAYS PC 43
NUMBER OF DAYS CLOUDY 37
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 13 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 13
LIGHT RAIN 40 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 4
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 8 SLEET 3
FOG 37 FOG W/VIS <= 1/4 MILE 1
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$