883
CDUS43 KLOT 210640
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT THU MAY 21 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 20 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 59 1:06 PM 95 1977 72 -13 56
MINIMUM 48 11:41 PM 33 2002 52 -4 48
AVERAGE 54 62 -8 52
PRECIPITATION (IN)
YESTERDAY 0.00 2.54 1975 0.15 -0.15 0.62
MONTH TO DATE 0.73 2.96 -2.23 0.95
SINCE MAR 1 12.46 9.16 3.30 6.60
SINCE JAN 1 15.15 13.12 2.03 9.10
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 T
SINCE MAR 1 1.8 6.8 -5.0 2.8
SINCE JUL 1 34.1 38.4 -4.3 17.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 11 5 6 13
MONTH TO DATE 178 152 26 147
SINCE MAR 1 1173 1428 -255 1205
SINCE JUL 1 5533 5897 -364 5340
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 34 28 6 26
SINCE MAR 1 53 38 15 34
SINCE JAN 1 53 38 15 34
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 14.1
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 12:00 AM
LOWEST 43 4:00 PM
AVERAGE 57
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 1934
1977
MINIMUM TEMPERATURE (F) 52 31 2002
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:26 AM CDT SUNSET 8:11 PM CDT
MAY 22 2026...........SUNRISE 5:25 AM CDT SUNSET 8:12 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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