Climatological Report (Daily)
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CDUS43 KLOT 312138
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT TUE MAR 31 2015


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MARCH 31 2015...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         56    259 PM  87    1981  53      3       68
  MINIMUM         39    439 AM  12    1969  34      5       41
                                      1923
  AVERAGE         48                        43      5       55

PRECIPITATION (IN)
  TODAY            0.00          3.12 1929   0.10  -0.10      T
  MONTH TO DATE    1.10                      2.50  -1.40     1.71
  SINCE MAR 1      1.10                      2.50  -1.40     1.71
  SINCE JAN 1      3.96                      6.02  -2.06     7.01

SNOWFALL (IN)
  TODAY            0.0           4.8  1926   0.1   -0.1      0.0
  MONTH TO DATE    7.1                       5.6    1.5     12.3
  SINCE MAR 1      7.1                       5.6    1.5     12.3
  SINCE JUL 1     50.7                      35.4   15.3     80.6

DEGREE DAYS
 HEATING
  TODAY           17                        22     -5       10
  MONTH TO DATE  911                       842     69     1025
  SINCE MAR 1    911                       841     70     1025
  SINCE JUL 1   6091                      5575    516     6440

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


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     9.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           700 AM
 LOWEST     43           200 PM
 AVERAGE    68

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   53        83      2010
 MINIMUM TEMPERATURE (F)   34        17      1881


SUNRISE AND SUNSET
MARCH 31 2015.........SUNRISE   636 AM CDT   SUNSET   716 PM CDT
APRIL  1 2015.........SUNRISE   635 AM CDT   SUNSET   717 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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