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012
CDUS43 KLOT 190042
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
742 PM CDT WED APR 18 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR APRIL 18 2018...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         37   1011 AM  89    2002  60    -23       76
  MINIMUM         30    447 AM  23    1983  40    -10       41
                                      1875
  AVERAGE         34                        50    -16       59

PRECIPITATION (IN)
  TODAY           MM             3.83 1975   0.11  MM        0.00
  MONTH TO DATE    2.28                      1.98   0.30     2.79
  SINCE MAR 1      4.02                      4.48  -0.46     6.80
  SINCE JAN 1     10.20                      8.00   2.20    11.19

SNOWFALL (IN)
  TODAY           MM             0.6  2011   0.1   MM        0.0
  MONTH TO DATE    2.7                       1.1    1.6      0.0
  SINCE MAR 1      5.3                       6.7   -1.4      7.8
  SINCE JUL 1     35.6                      36.2   -0.6     26.1

DEGREE DAYS
 HEATING
  TODAY           31                        16     15        6
  MONTH TO DATE  516                       334    182      208
  SINCE MAR 1   1383                      1175    208      993
  SINCE JUL 1   5841                      5909    -68     4918

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        9
  SINCE MAR 1      0                         1     -1        9
  SINCE JAN 1      0                         1     -1        9
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED    10.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  SLEET
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           300 AM
 LOWEST     64          1000 AM
 AVERAGE    71

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   61        86      1985
 MINIMUM TEMPERATURE (F)   40        22      1983


SUNRISE AND SUNSET
APRIL 18 2018.........SUNRISE   606 AM CDT   SUNSET   736 PM CDT
APRIL 19 2018.........SUNRISE   605 AM CDT   SUNSET   737 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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