Climatological Report (Monthly) Issued by NWS
000
CXUS53 KLOT 011420
CLMORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
920 AM CDT MON MAY 01 2023
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...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 91 04/22/1980
04/30/1942
LOW 7 04/07/1982
HIGHEST 83 04/13 84 04/23
04/14
04/15
LOWEST 30 04/02 29 04/17
AVG. MAXIMUM 62.2 59.0 3.2 55.1
AVG. MINIMUM 41.3 40.3 1.0 38.9
MEAN 51.8 49.7 2.0 47.0
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.1 -0.1 0
DAYS MIN <= 32 5 6.0 -1.0 5
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.68 2013
MINIMUM 0.14 1899
TOTALS 2.02 3.75 -1.73 5.31
DAILY AVG. 0.07 0.13 -0.06 0.18
DAYS >= .01 14 12.3 1.7 17
DAYS >= .10 8 7.1 0.9 10
DAYS >= .50 1 2.5 -1.5 3
DAYS >= 1.00 0 0.8 -0.8 1
GREATEST
24 HR. TOTAL 0.88 04/04 TO 04/05 1.58
SNOWFALL (INCHES)
RECORDS
TOTAL 13.6 1938
TOTALS 0.5 1.3 -0.8 0.4
SINCE 7/1 20.2 38.4 -18.2 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.4 -0.4 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL 0.4R 04/17 TO 04/17 0.2
DEGREE DAYS
HEATING TOTAL 416 468 -52 533
SINCE 7/1 5253 5745 -492 MM
COOLING TOTAL 25 8 17 3
SINCE 1/1 25 10 15 MM
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WIND (MPH)
AVERAGE WIND SPEED 10.3
HIGHEST WIND SPEED/DIRECTION 30/140 DATE 04/04
30/240 04/05
30/230 04/15
HIGHEST GUST SPEED/DIRECTION 47/210 DATE 04/05
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.62
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 12
AVERAGE RH (PERCENT) 56
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 5
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 3
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 4 SLEET 1
FOG 10 FOG W/VIS <= 1/4 MILE 0
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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