Climatological Report (Daily)
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000
CDUS43 KLOT 122137
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT SUN MAR 12 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MARCH 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         36    205 PM  81    1990  45     -9       59
  MINIMUM         18    544 AM   1    1948  28    -10       33
  AVERAGE         27                        36     -9       46

PRECIPITATION (IN)
  TODAY            0.00          1.72 1902   0.07  -0.07      T
  MONTH TO DATE    0.37                      0.92  -0.55     0.45
  SINCE MAR 1      0.37                      0.92  -0.55     0.45
  SINCE JAN 1      4.76                      4.44   0.32     2.52

SNOWFALL (IN)
  TODAY            0.0           4.4  1991   0.2   -0.2      0.0
  MONTH TO DATE    0.1                       2.8   -2.7      2.6
  SINCE MAR 1      0.1                       2.8   -2.7      2.6
  SINCE JUL 1     18.4                      32.3  -13.9     30.1

DEGREE DAYS
 HEATING
  TODAY           38                        29      9       19
  MONTH TO DATE  319                       367    -48      288
  SINCE MAR 1    319                       367    -48      288
  SINCE JUL 1   4244                      5101   -857     4296

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


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     4.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    51           200 AM
 LOWEST     23          1200 PM
 AVERAGE    37

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        73      2007
 MINIMUM TEMPERATURE (F)   28         6      1896


SUNRISE AND SUNSET
MARCH 12 2017.........SUNRISE   708 AM CDT   SUNSET   655 PM CDT
MARCH 13 2017.........SUNRISE   706 AM CDT   SUNSET   656 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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