Climatological Report (Daily)
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CDUS43 KLOT 190634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT THU MAR 19 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 18 2015...

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)
 YESTERDAY
  MAXIMUM         50    139 PM  81    2012  47      3       52
  MINIMUM         28    532 AM   3    1923  30     -2       27
  AVERAGE         39                        39      0       40

PRECIPITATION (IN)
  YESTERDAY        0.00          1.33 1983   0.08  -0.08      T
  MONTH TO DATE    0.13                      1.38  -1.25     1.17
  SINCE MAR 1      0.13                      1.38  -1.25     1.17
  SINCE JAN 1      2.99                      4.90  -1.91     6.47

SNOWFALL (IN)
  YESTERDAY        0.0           4.5  1971   0.1   -0.1      0.0
  MONTH TO DATE    0.7                       3.9   -3.2     11.0
  SINCE MAR 1      0.7                       3.9   -3.2     11.0
  SINCE JUL 1     44.3                      33.7   10.6     79.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       26                        26      0       25
  MONTH TO DATE  543                       530     13      665
  SINCE MAR 1    543                       530     13      665
  SINCE JUL 1   5723                      5264    459     6080

 COOLING
  YESTERDAY        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    14   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     4.7


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    69           400 AM
 LOWEST     21           100 PM
 AVERAGE    45

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        78      2012
                                             1921
 MINIMUM TEMPERATURE (F)   30         0      1923


SUNRISE AND SUNSET
MARCH 19 2015.........SUNRISE   657 AM CDT   SUNSET   702 PM CDT
MARCH 20 2015.........SUNRISE   655 AM CDT   SUNSET   704 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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