Climatological Report (Seasonal) Issued by NWS
000
CXUS53 KLOT 011956
CLSORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
256 PM CDT TUE JUN 01 2021
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...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2021 TO 5/31/2021...
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 98 05/31/1934
LOW -12 03/04/1873
HIGHEST 90 05/24 MM MM 90 05/24
LOWEST 22 03/02 MM MM 25 03/07
AVG. MAXIMUM 61.4 58.8 2.6 59.3
AVG. MINIMUM 42.8 40.6 2.2 41.4
MEAN 52.1 49.7 2.4 50.3
DAYS MAX >= 90 1 0.8 0.2 1
DAYS MAX <= 32 0 3.1 -3.1 0
DAYS MIN <= 32 15 26.1 -11.1 15
DAYS MIN <= 0 0 0.2 -0.2 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 17.51 1983
MINIMUM 2.73 1887
TOTALS 3.75 10.69 -6.94 16.80
DAILY AVG. 0.04 0.12 -0.08 0.18
DAYS >= .01 24 35.6 -11.6 40
DAYS >= .10 11 20.7 -9.7 25
DAYS >= .50 2 6.9 -4.9 8
DAYS >= 1.00 0 2.3 -2.3 4
GREATEST
24 HR. TOTAL 0.74 05/26 TO 05/26 3.53
SNOWFALL (INCHES)
RECORDS
TOTAL 29.7 1926
TOTALS 1.8 6.8 -5.0 7.9
SINCE 7/1 48.8 38.4 10.4 MM
DAYS >= TRACE 3 5.0 -2.0 11
DAYS >= 1.0 1 1.9 -0.9 4
GREATEST
SNOW DEPTH 1 03/16 3 03/23
24 HR TOTAL 1.8 03/15 TO 03/15 3.0
DEGREE DAYS
HEATING TOTAL 1262 1474 -212 1393
SINCE 7/1 5602 5943 -341 MM
COOLING TOTAL 101 70 31 74
SINCE 1/1 101 70 31 74
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WIND (MPH)
AVERAGE WIND SPEED 10.2
HIGHEST WIND SPEED/DIRECTION 39/020 DATE 03/18
HIGHEST GUST SPEED/DIRECTION 57/310 DATE 04/29
SKY COVER
AVERAGE SKY COVER 0.61
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 5 RAIN 12
LIGHT RAIN 35 FREEZING RAIN 0
LT FREEZING RAIN 2 HAIL 0
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 3 SLEET 1
FOG 25 FOG W/VIS <= 1/4 MILE 2
HAZE 11
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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