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CDUS43 KLOT 182140
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
440 PM CDT THU APR 18 2024

...................................

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 18 2024...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         58  11:31 AM  89    2002  60     -2       58
  MINIMUM         47   4:48 AM  23    1875  41      6       33
                                      1983
  AVERAGE         53                        50      3       46

PRECIPITATION (IN)
  TODAY            T             3.83 1975   0.14  -0.14     0.00
  MONTH TO DATE    1.94                      2.08  -0.14     1.38
  SINCE MAR 1      5.53                      4.53   1.00     5.18
  SINCE JAN 1      9.68                      8.49   1.19    11.61

SNOWFALL (IN)
  TODAY            0.0           0.6  2011   0.0    0.0      0.0
  MONTH TO DATE    T                         1.0   -1.0      0.4
  SINCE MAR 1      1.0                       6.5   -5.5      2.2
  SINCE JUL 1     22.2                      38.1  -15.9     20.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           12                        15     -3       19
  MONTH TO DATE  227                       319    -92      216
  SINCE MAR 1    869                      1127   -258     1018
  SINCE JUL 1   4557                      5596  -1039     5053

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    3                         0      3       25
  SINCE MAR 1      3                         2      1       25
  SINCE JAN 1      3                         2      1       25
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     5.9


SKY COVER
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80           6:00 AM
 LOWEST     55          11:00 AM
 AVERAGE    68

..........................................................


THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   60        86      1985
 MINIMUM TEMPERATURE (F)   41        22      1983


SUNRISE AND SUNSET
APRIL 18 2024.........SUNRISE   6:06 AM CDT   SUNSET   7:37 PM CDT
APRIL 19 2024.........SUNRISE   6:04 AM CDT   SUNSET   7:38 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$
National Weather Service Regional Headquarters
