Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 150634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT THU MAY 15 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 14 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 80 3:18 PM 92 1982 70 10 62
MINIMUM 56 3:21 AM 32 1895 50 6 51
AVERAGE 68 60 8 57
PRECIPITATION (IN)
YESTERDAY 0.00 3.53 2020 0.15 -0.15 0.03
MONTH TO DATE 0.33 2.08 -1.75 2.57
SINCE MAR 1 5.98 8.28 -2.30 9.63
SINCE JAN 1 8.48 12.24 -3.76 13.78
SNOWFALL (IN)
YESTERDAY 0.0 T 1973 0.0 0.0 0.0
MONTH TO DATE 0.0 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 0 7 -7 8
MONTH TO DATE 106 117 -11 48
SINCE MAR 1 1164 1393 -229 1061
SINCE JUL 1 5299 5862 -563 4749
COOLING
YESTERDAY 3 2 1 0
MONTH TO DATE 6 16 -10 16
SINCE MAR 1 14 26 -12 25
SINCE JAN 1 14 26 -12 25
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 AM
LOWEST 56 4:00 PM
AVERAGE 77
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 91 1962
MINIMUM TEMPERATURE (F) 50 35 1895
2016
SUNRISE AND SUNSET
MAY 15 2025...........SUNRISE 5:31 AM CDT SUNSET 8:06 PM CDT
MAY 16 2025...........SUNRISE 5:30 AM CDT SUNSET 8:07 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$