Climatological Report (Daily)
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000
CDUS43 KLOT 180632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT WED MAR 18 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 17 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         45    202 PM  82    2012  47     -2       40
  MINIMUM         28   1155 PM  -1    1900  30     -2       20
  AVERAGE         37                        38     -1       30

PRECIPITATION (IN)
  YESTERDAY        0.00          1.42 1965   0.08  -0.08     0.00
  MONTH TO DATE    0.13                      1.30  -1.17     1.17
  SINCE MAR 1      0.13                      1.30  -1.17     1.17
  SINCE JAN 1      2.99                      4.82  -1.83     6.47

SNOWFALL (IN)
  YESTERDAY        0.0           4.1  1984   0.2   -0.2      0.0
  MONTH TO DATE    0.7                       3.8   -3.1     11.0
  SINCE MAR 1      0.7                       3.8   -3.1     11.0
  SINCE JUL 1     44.3                      33.6   10.7     79.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       28                        27      1       35
  MONTH TO DATE  517                       504     13      640
  SINCE MAR 1    517                       504     13      640
  SINCE JUL 1   5697                      5238    459     6055

 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    30   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED    14.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           100 AM
 LOWEST     27          1200 PM
 AVERAGE    57

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        81      2012
 MINIMUM TEMPERATURE (F)   30         3      1923


SUNRISE AND SUNSET
MARCH 18 2015.........SUNRISE   659 AM CDT   SUNSET   701 PM CDT
MARCH 19 2015.........SUNRISE   657 AM CDT   SUNSET   702 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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