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CDUS43 KLOT 132131
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
431 PM CDT FRI APR 13 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR APRIL 13 2018...
VALID TODAY AS OF 0400 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         47    951 AM  82    1941  58    -11       60
                                      1887
  MINIMUM         40    357 AM  21    1950  38      2       44
  AVERAGE         44                        48     -4       52

PRECIPITATION (IN)
  TODAY            T             1.33 1983   0.11  -0.11     0.19
  MONTH TO DATE    0.50                      1.41  -0.91     2.05
  SINCE MAR 1      2.24                      3.91  -1.67     6.06
  SINCE JAN 1      8.42                      7.43   0.99    10.45

SNOWFALL (IN)
  TODAY            0.0           1.2  1907   0.1   -0.1      0.0
  MONTH TO DATE    2.2                       0.9    1.3      0.0
  SINCE MAR 1      4.8                       6.5   -1.7      7.8
  SINCE JUL 1     35.1                      36.0   -0.9     26.1

DEGREE DAYS
 HEATING
  TODAY           21                        17      4       13
  MONTH TO DATE  362                       252    110      184
  SINCE MAR 1   1229                      1093    136      969
  SINCE JUL 1   5687                      5827   -140     4894

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        2
  SINCE MAR 1      0                         1     -1        2
  SINCE JAN 1      0                         1     -1        2
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NE (30)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED    12.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           200 AM
 LOWEST     76          1200 AM
 AVERAGE    81

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   58        85      2003
 MINIMUM TEMPERATURE (F)   38        23      1943
                                             1907


SUNRISE AND SUNSET
APRIL 13 2018.........SUNRISE   614 AM CDT   SUNSET   731 PM CDT
APRIL 14 2018.........SUNRISE   613 AM CDT   SUNSET   732 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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