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CDUS43 KLOT 130633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT MON MAY 13 2013


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 12 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         55    358 PM  92    1956  69    -14       69
  MINIMUM         37    459 AM  31    1981  47    -10       53
  AVERAGE         46                        58    -12       61

PRECIPITATION (IN)
  YESTERDAY        0.00          2.67 1935   0.12  -0.12     0.03
  MONTH TO DATE    0.63                      1.39  -0.76     3.07
  SINCE MAR 1     11.31                      7.27   4.04     7.40
  SINCE JAN 1     17.90                     10.79   7.11    10.90

SNOWFALL (IN)
  YESTERDAY        0.0           T    1923   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0       T
  SINCE MAR 1     10.5                       6.8    3.7      0.3
  SINCE JUL 1     30.1                      36.3   -6.2     19.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       19                         8     11        4
  MONTH TO DATE  111                       114     -3       60
  SINCE MAR 1   1647                      1447    200      877
  SINCE JUL 1   6049                      6181   -132     4850

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    5                        10     -5       15
  SINCE MAR 1     13                        20     -7       58
  SINCE JAN 1     13                        20     -7       58
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED    11.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           900 PM
 LOWEST     28           500 PM
 AVERAGE    52

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1991
                                             1956
 MINIMUM TEMPERATURE (F)   47        34      1996
                                             1888


SUNRISE AND SUNSET
MAY 13 2013...........SUNRISE   533 AM CDT   SUNSET   803 PM CDT
MAY 14 2013...........SUNRISE   532 AM CDT   SUNSET   804 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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