Climatological Report (Daily)
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CDUS43 KLOT 100632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT MON APR 10 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 9 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         77    240 PM  80    1887  56     21       38
  MINIMUM         57    634 AM  20    1989  37     20       22
  AVERAGE         67                        46     21       30

PRECIPITATION (IN)
  YESTERDAY        0.00          1.49 1882   0.12  -0.12      T
  MONTH TO DATE    1.54                      0.96   0.58     0.59
  SINCE MAR 1      5.55                      3.46   2.09     3.93
  SINCE JAN 1      9.94                      6.98   2.96     6.00

SNOWFALL (IN)
  YESTERDAY        0.0           1.8  1961   0.1   -0.1       T
  MONTH TO DATE    0.0                       0.7   -0.7      1.1
  SINCE MAR 1      7.8                       6.3    1.5      3.7
  SINCE JUL 1     26.1                      35.8   -9.7     31.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                        19    -19       35
  MONTH TO DATE  133                       181    -48      245
  SINCE MAR 1    918                      1022   -104      910
  SINCE JUL 1   4843                      5756   -913     4918

 COOLING
  YESTERDAY        2                         0      2        0
  MONTH TO DATE    2                         0      2        0
  SINCE MAR 1      2                         1      1        0
  SINCE JAN 1      2                         1      1        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    33   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    47   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED    18.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    55           500 AM
 LOWEST     43           100 PM
 AVERAGE    49

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        90      1930
 MINIMUM TEMPERATURE (F)   37        18      1989


SUNRISE AND SUNSET
APRIL 10 2017.........SUNRISE   619 AM CDT   SUNSET   727 PM CDT
APRIL 11 2017.........SUNRISE   617 AM CDT   SUNSET   729 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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