Climatological Report (Daily)
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000
CDUS43 KLOT 182134
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT TUE APR 18 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR APRIL 18 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         75    201 PM  89    2002  60     15       83
  MINIMUM         41    539 AM  23    1983  40      1       49
                                      1875
  AVERAGE         58                        50      8       66

PRECIPITATION (IN)
  TODAY            0.00          3.83 1975   0.11  -0.11     0.00
  MONTH TO DATE    2.79                      1.98   0.81     0.69
  SINCE MAR 1      6.80                      4.48   2.32     4.03
  SINCE JAN 1     11.19                      8.00   3.19     6.10

SNOWFALL (IN)
  TODAY            0.0           0.6  2011   0.1   -0.1      0.0
  MONTH TO DATE    0.0                       1.1   -1.1      1.1
  SINCE MAR 1      7.8                       6.7    1.1      3.7
  SINCE JUL 1     26.1                      36.2  -10.1     31.2

DEGREE DAYS
 HEATING
  TODAY            7                        16     -9        0
  MONTH TO DATE  209                       334   -125      370
  SINCE MAR 1    994                      1175   -181     1035
  SINCE JUL 1   4919                      5909   -990     5043

 COOLING
  TODAY            0                         0      0        1
  MONTH TO DATE    9                         0      9        1
  SINCE MAR 1      9                         1      8        1
  SINCE JAN 1      9                         1      8        1
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED    10.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           600 AM
 LOWEST     25           200 PM
 AVERAGE    57

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


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 2017.........SUNRISE   606 AM CDT   SUNSET   736 PM CDT
APRIL 19 2017.........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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