197
CXUS53 KLOT 011612
CLMORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1112 AM CDT WED MAY 01 2024
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF APRIL 2024
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 91 04/22/1980
04/30/1942
LOW 7 04/07/1982
HIGHEST 81 04/14 83 04/13
04/16
04/14
04/15
LOWEST 32 04/06 30 04/02
AVG. MAXIMUM 61.6 59.0 2.6 62.2
AVG. MINIMUM 43.8 40.3 3.5 41.3
MEAN 52.7 49.7 3.0 51.8
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 1 6.0 -5.0 5
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.68 2013
MINIMUM 0.14 1899
TOTALS 3.47 3.75 -0.28 2.02
DAILY AVG. 0.12 0.13 -0.01 0.07
DAYS >= .01 14 12.3 1.7 14
DAYS >= .10 10 7.1 2.9 8
DAYS >= .50 1 2.5 -1.5 1
DAYS >= 1.00 0 0.8 -0.8 0
GREATEST
24 HR. TOTAL 0.82 04/01 TO 04/02 0.88
SNOWFALL (INCHES)
RECORDS
TOTAL 13.6 1938
TOTALS T 1.3 -1.3 0.5
SINCE 7/1 22.2 38.4 -16.2 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL MM 0.4
DEGREE DAYS
HEATING TOTAL 371 468 -97 416
SINCE 7/1 4701 5745 -1044 MM
COOLING TOTAL 9 8 1 25
SINCE 1/1 9 10 -1 MM
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WIND (MPH)
AVERAGE WIND SPEED 11.4
HIGHEST WIND SPEED/DIRECTION 30/320 DATE 04/12
30/170 04/28
HIGHEST GUST SPEED/DIRECTION 45/250 DATE 04/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.62
NUMBER OF DAYS FAIR 8
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 13
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 8 MIXED PRECIP 0
HEAVY RAIN 6 RAIN 8
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 1
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 3 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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