Climatological Report (Daily)
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000
CDUS43 KLOT 180641
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT THU APR 18 2024

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 17 2024...

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)
 YESTERDAY
  MAXIMUM         68   6:43 AM  88    1976  60      8       39
  MINIMUM         53  11:59 PM  17    1875  41     12       32
  AVERAGE         61                        50     11       36

PRECIPITATION (IN)
  YESTERDAY        0.19          2.01 2013   0.13   0.06     0.07
  MONTH TO DATE    1.94                      1.94   0.00     1.38
  SINCE MAR 1      5.53                      4.39   1.14     5.18
  SINCE JAN 1      9.68                      8.35   1.33    11.61

SNOWFALL (IN)
  YESTERDAY        0.0           3.0  2020   0.1   -0.1      0.4
  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
  YESTERDAY        4                        15    -11       29
  MONTH TO DATE  215                       304    -89      197
  SINCE MAR 1    857                      1112   -255      999
  SINCE JUL 1   4545                      5581  -1036     5034

 COOLING
  YESTERDAY        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    29   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    45   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    17.3


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           7:00 AM
 LOWEST     62          10:00 PM
 AVERAGE    76

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   60        89      2002
 MINIMUM TEMPERATURE (F)   41        23      1875
                                             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.




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