Climatological Report (Daily)
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000
CDUS43 KLOT 190653
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
153 AM CDT WED APR 19 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 18 2017...

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)
 YESTERDAY
  MAXIMUM         76    453 PM  89    2002  60     16       83
  MINIMUM         41    539 AM  23    1983  40      1       49
                                      1875
  AVERAGE         59                        50      9       66

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        6                        16    -10        0
  MONTH TO DATE  208                       334   -126      370
  SINCE MAR 1    993                      1175   -182     1035
  SINCE JUL 1   4918                      5909   -991     5043

 COOLING
  YESTERDAY        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    11.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


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

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


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


SUNRISE AND SUNSET
APRIL 19 2017.........SUNRISE   605 AM CDT   SUNSET   737 PM CDT
APRIL 20 2017.........SUNRISE   603 AM CDT   SUNSET   739 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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