910
CDUS43 KLOT 190633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT MON MAY 19 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 18 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 64 1:56 PM 93 1962 71 -7 85
MINIMUM 45 11:59 PM 34 2002 51 -6 59
AVERAGE 55 61 -6 72
PRECIPITATION (IN)
YESTERDAY 0.00 1.36 1926 0.14 -0.14 0.00
MONTH TO DATE 0.33 2.66 -2.33 3.05
SINCE MAR 1 5.98 8.86 -2.88 10.11
SINCE JAN 1 8.48 12.82 -4.34 14.26
SNOWFALL (IN)
YESTERDAY 0.0 T 1894 0.0 0.0 0.0
1938
MONTH TO DATE T 0.0 0.0 0.0
SINCE MAR 1 2.8 6.8 -4.0 1.0
SINCE JUL 1 17.6 38.4 -20.8 22.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 10 6 4 0
MONTH TO DATE 118 141 -23 54
SINCE MAR 1 1176 1417 -241 1067
SINCE JUL 1 5311 5886 -575 4755
COOLING
YESTERDAY 0 2 -2 7
MONTH TO DATE 26 24 2 28
SINCE MAR 1 34 34 0 37
SINCE JAN 1 34 34 0 37
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 9.1
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 5:00 AM
LOWEST 56 11:00 AM
AVERAGE 67
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 94 1975
1977
MINIMUM TEMPERATURE (F) 52 36 1894
1993
SUNRISE AND SUNSET
MAY 19 2025...........SUNRISE 5:27 AM CDT SUNSET 8:10 PM CDT
MAY 20 2025...........SUNRISE 5:26 AM CDT SUNSET 8:11 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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