Climatological Report (Daily)
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CDUS43 KLOT 122136
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT WED APR 12 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR APRIL 12 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         59   1228 PM  86    1977  58      1       47
                                      1971
  MINIMUM         38    413 AM  21    1957  38      0       30
                                      1939
  AVERAGE         49                        48      1       39

PRECIPITATION (IN)
  TODAY            0.00          1.16 1952   0.11  -0.11     0.00
                                      1909
  MONTH TO DATE    1.86                      1.30   0.56     0.69
  SINCE MAR 1      5.87                      3.80   2.07     4.03
  SINCE JAN 1     10.26                      7.32   2.94     6.10

SNOWFALL (IN)
  TODAY            0.0           1.7  1973   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.8   -0.8      1.1
  SINCE MAR 1      7.8                       6.4    1.4      3.7
  SINCE JUL 1     26.1                      35.9   -9.8     31.2

DEGREE DAYS
 HEATING
  TODAY           16                        18     -2       26
  MONTH TO DATE  171                       235    -64      315
  SINCE MAR 1    956                      1076   -120      980
  SINCE JUL 1   4881                      5810   -929     4988

 COOLING
  TODAY            0                         0      0        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    16   HIGHEST WIND DIRECTION     E (110)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     E (110)
  AVERAGE WIND SPEED     5.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85           600 AM
 LOWEST     43          1100 AM
 AVERAGE    64

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   58        82      1941
                                             1887
 MINIMUM TEMPERATURE (F)   38        21      1950


SUNRISE AND SUNSET
APRIL 12 2017.........SUNRISE   616 AM CDT   SUNSET   730 PM CDT
APRIL 13 2017.........SUNRISE   614 AM CDT   SUNSET   731 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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