636
CXUS53 KLOT 011745
CLSORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1245 PM CDT MON JUN 01 2026
...............................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2026 TO 5/31/2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
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 87 05/17 94 05/15
LOWEST 14 03/17 18 03/02
AVG. MAXIMUM 63.1 58.8 4.3 60.7
AVG. MINIMUM 42.0 40.6 1.4 41.5
MEAN 52.6 49.7 2.9 51.1
DAYS MAX >= 90 0 1.0 -1.0 1
DAYS MAX <= 32 3 3.0 0.0 0
DAYS MIN <= 32 20 26.1 -6.1 13
DAYS MIN <= 0 0 0.2 -0.2 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 17.51 1983
MINIMUM 2.73 1887
TOTALS 12.90 10.69 2.21 7.00
DAILY AVG. 0.14 0.12 0.02 0.08
DAYS >= .01 42 35.6 6.4 29
DAYS >= .10 24 20.7 3.3 19
DAYS >= .50 8 6.9 1.1 5
DAYS >= 1.00 4 2.3 1.7 1
GREATEST
24 HR. TOTAL 2.43 04/14 TO 04/14 1.25
SNOWFALL (INCHES)
RECORDS
TOTAL 29.7 1926
TOTALS 1.8 6.8 -5.0 2.8
SINCE 7/1 34.1 38.4 -4.3 MM
DAYS >= 1.0 1 2.0 -1.0 2
GREATEST
SNOW DEPTH 1 03/16 2 03/20
03/17
24 HR TOTAL 1.3 03/15 TO 03/16 1.7
DEGREE DAYS
HEATING TOTAL 1198 1474 -276 1293
SINCE 7/1 5558 5943 -385 MM
COOLING TOTAL 78 70 8 34
SINCE 1/1 78 70 8 MM
............................................................
WIND (MPH)
AVERAGE WIND SPEED 10.9
HIGHEST WIND SPEED/DIRECTION 39/250 DATE 03/13
HIGHEST GUST SPEED/DIRECTION 65/250 DATE 03/13
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.68
NUMBER OF DAYS FAIR 9
NUMBER OF DAYS PC 45
NUMBER OF DAYS CLOUDY 38
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 25 MIXED PRECIP 0
HEAVY RAIN 13 RAIN 16
LIGHT RAIN 45 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 2
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 6 SLEET 1
FOG 37 FOG W/VIS <= 1/4 MILE 5
HAZE 13
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page